firstly: nothing. “doing” out of morality is already going against the current. let yourself flow.
secondly: commerce. good deals, saving money, finding opportunities for profit in productivity for a market. it is not idealism if it pays well.
thirdly: strategy. which means, survival. think ahead of those leeching on your resources. understand and predict their behaviors. be two (or more) steps ahead. triangulate. mostly avoid being a short-sighted idiot, which is already better then half the population of the earth.
fourthly: after you have eased yourself of worries, acquired currency in vast enough amounts to spare leisure and granted lifespan, play games. good games, hard games, long games, massive multiplayer online games (seriously). play games of consumption, of recording, of production. learn crafts and languages, dress well, eat exotic, sex often and good, experience. intelligence grows on stimuli and discrimination. games summarize all this.
.5: repeat. (which means replication, if not reproduction).