It seems that you have no clue about Gridcoin. Gridcoin isn't making any serious amount of money, it only lowers the cost that you spend for contributing to global science. Maybe somewhere in the future Gridcoin will give you more then you put into power costs but that's definitively not the case now. We crunch because we wan't to help humanity, i was crunching way before Gridcoin existed and i will still crunch no matter if there is a Coin or not.