You don't get to make their decisions but you do get to choose the decision makers.
You're either not hiring at all or it's probably your single biggest block of time.
In the beginning of a company, there is no management and this actually works really well.
A related advantage of mission oriented ideas, is that you yourself will be dedicated to them.
A single mediocre hire in the first five will often in fact kill a startup.
Be suspicious of any work that is not building product or getting customers.