I grew up in a surfer village.
Never got into the surf scene, but I know personalities change dramatically when they get into it.
"Yo - duuuuuuude" - etc.
I didn't fit in there.
So I interpreted their personal changes as, complacency - as due to my apparent lack of being a douchebag, I was pretty much excluded from that scene.
However - I DID get into BJJ, and have also seen personality changes come about as newbie's become more proficient, get big idea's of themselves and feel they're in a position to glean some validation for being the "badasses" they are in their own minds.
Except this time - I can kick their asses, man handle them, and generally take their lunch money - yet not be part of the douchebag group they have founded.
It doesn't really seem to alter their new found douchebag disposition, but it does seem to piss them right off; I'd be lying if I said I didn't get some satisfaction out of that.