I don't think it's a bogan mentality (as a bogan, I'm offended by that :p ).
I can think of electronically created music that is quite good, but plenty of it is rubbish. I'm yet to hear anything electronic played at a club that has lasted too long, as has taken a whole lot of talent to create - perhaps beyond one or two people compared to an entire band. That said, the few people I've heard actually try to argue this point have actually created this type of music, so there is a bias based on the effort involved in creating it.
For people out looking for entertainment at the local, watching some self involved knob standing behind a keyboard and laptop really isn't as entertaining as seeing a band. Electro/techno/whatever doesn't really allow the entertainer to interact with an audience in the same way that a half reasonable band can.
Rap is mostly shit - mostly due to rubbish lyrics as much as talentless people trying to make money out of not actually being able to sing. I can think of a couple of reasonable rappers - more so for their lyric writing than their actual vocal skills.
Of course, all of this depends on what your angle on the music is as a musician. If you're into studios, and more into technical playing and reliance on classical training that's all well and good. If you're into walking on to a stage and actually having to entertain the people standing in front of you, then your ass needs to know how to play what they want to hear, and chances are they couldn't give a rats arse about much else. I'd play some Slim Dusty before I'd play Stairway. Actually, that's happened before. Long story.
It does seem to be particularly prevalent in the bogan fraternity, thus my typifying of it as such - though I will admit that it does seem to be absolutely applicable to just about any non-homosexual in this country above the age of 30. Go figure.
I can genuinely say there's no bias for me when it comes to this sort of thing, as I've been involved in creating just about every type of music under the Sun - up to and including both Country and Classical - and draw no particular allegiance to any particular genre. That being said, if it's played in a club, you can say with almost absolute certainty that it isn't of the classic electronic music as I'm referencing... it's not the type of thing that kids on Eckies can easily bumble about on a dancefloor for hours whilst their braincells jump out of their ear canals. Knowing how to manipulate sound, irrespective of instrument, is only part of the creative process and that process does still apply whether you're playing it on circuit-bent keyboards, turntables, samplers, or a Les Paul '59 Custom, a-là Jimmy Page. Hell, even Daft Punk compose the majority of their work on guitars prior to re-imagining them electronically... it's surprising the number of highly successful electronic artists who've progressed from an analogue music background (Daft Punk are 2/3 of a former punk band for instance).
It's interesting you say about crowd involvement. I've been to shows of all kinds of genres... and the most I've seen a crowd involved with the musicians and the musicians involved with the crowd was actually on Wednesday night when I saw Crystal Castles. I say this having seen bands up to and including Eagles (who, for the record, are essentially my favourite band). Once more, if the electronic you're listening to is played by self-involved wankers, it's not of the class I refer to and shouldn't be used as a judgement for discussion. Although, they had a touring drummer so does that make them a live band? ;)
Plenty of good Rap... you won't ever hear it though. And I will tell you that the majority of it does not involve any references to attainment or superfluous stupidity that the commonplace does. "Guns, blunts, forties, and bitches" is easy to sell to idiots... not very easy to sell to the intellectual crowd. By which I mean those who can count to seven without the assistance of their phalanges and are capable of pronouncing words of more than three syllables. Whilst most have terrible vocal abilities in the traditionalist sense, a good number can actually sing when pressed... Frank Ocean for instance springs to mind here as one of those. Odds are, if you're hearing from them through usual channels, they're not worth a shit and you're only hearing about them because someone spend some cash to get them publicity.
Standing up on stage is fabulous. I do miss it, it was one of my greatest joys in life for quite some time there. Nothing quite like being told that you've got one song left in your set before they need to shut the stage down and then launching into a song that runs for 38 minutes. Punters love it. Recording technicians who have to master the same thing and cut it down to sub- 5 minutes however do not. Whodathunkit? :)