I don't think so because the corporation isn't a person and no one actually has the corporation's best interests at heart. Everyone is invested or labour for the venture for money - some idealists may want to build a great thing - but those will be far in the minority compared to those that want to sell a great thing.

Reinvestment in a corporation is only naturally incentivized when that strategy appears to give the biggest RoI and not all money uninvested from markets, companies etc. will necessarily be reinvested in another venture.

In theory sure, but there are many many counter-examples. Corporate management rarely makes decisions that are against their interests.