Big chunk of micros fold too much or too little...

People who fold too much hate to play big pots, so you get moniez from the weak tighties.

People who don't fold enough play crap for pots that are too big, so you make moniez.

People get pot committed too easily so you got better chances to stack 'em for moniez if you build the pot aggressively with goot hands.

That's three ways to make moniez.