This seems a bit naive. One needs to continually generate resources to continue to be able to finically stomach bets on risky ventures (startups). It wold be the equivalent of a farmer giving away all his crops and not having money to fix the engine on his thresher the following harvest.

Dependent on the details this should be applauded. Although I think it would be much more interesting if they took part of their money and created grants for companies doing good in the world that would have trouble sustaining profitability.