I think it's a careful balance between contributing for the greater good and hoping it compensates you later on (whether that be fame or fortune). IMO, the per

I think it's a careful balance between contributing for the greater good and hoping it compensates you later on (whether that be fame or fortune). IMO, the perfect storm is to create a software that solves the layperson's problems just fine (enticing adoption). And then has a proprietary section that makes more sense for those who have the money (re: @beneologist).