Because nobody skilled is going to build this without payment? this thinly veiled criticism of ICOs has that obvious logical flaw.
Computational proofs take a long time for the development team to get funded, and this delays go to market strategies. Look at the graveyard of mineable projects before this year's ICO boom, broke underfunded devs with no ability to mobilize a community to fund the tiniest things. Pitiful bounty systems where the payouts can't even motivate the imagined Indian developer.
If you don't think current ICOs align economic incentives well ENOUGH, then discuss that particular nuance instead.