Why wouldn't founders take such salaries, which are not outrageous? Saying that founders shouldn't take a fair salary - comparable to what they might get elsew

Why wouldn't founders take such salaries, which are not outrageous? Saying that founders shouldn't take a fair salary - comparable to what they might get elsewhere - puts them in a untenably risky position that would limit the pool of founders to the independently wealthy and the foolish. That limitation would not be to the benefit of the backers.