I think that's fair. I'm a relatively recent London commuter, and one who doesn't tend to jump lights etc. I often go through sets of lights where there's a reasonable collection of cyclists, and no-one at all RLJs. To be fair, there are other places where five cyclists will arrive, and three will nip through.
That said, we are a bit blind to what we do as motorists. For example, the law says stop on amber (if it's safe). Stopping on red is irrelevant, because the whole point is to have stopped before the lights go red. That we have forgotten that and even discuss stopping on red is exclusively an achievement of us as motorists, in which cyclists had no part. And several mornings this week motorists have tried to cut across into a cycle lane and use it as a left-turn lane at a roundabout, in one case when I was already in the lane and the driver knew it.
So, if that's the general social attitude, it's no great surprise that the same people, when they get on bikes, push the envelope too.
In any case, it makes no sense to talk about cyclists as a group distinct from motorists. Most, though not all, cyclists are motorists. It's like saying that rugby players are more aggressive than men. It just doesn't hang together as a statement. You could of course say that men get more aggressive when they play rugby, or that motorists/people become less law-abiding when they get on bikes. Whether that would be true is another matter, but it would at least make logical sense.
