Maybe heroes are needed just as much as people that do good designs. Maybe it's more akin to a dichotomy of people that build good houses that hardly catch fire and firefighters who put out fires; even in the extreme case that you build nothing but houses that hardly catch fire, it won't mean that you don't need firefighters; in the nominal case of an economically feasible amount (I doubt many MVPs could take on the cost to make them near fireproof) of almost fireproof houses, it might approximate to needing both equally as much.

Frankly, I've been on both sides of the aisle when it comes to projects that allowed for great design and projects that resulted in doing an endless marathon for 3 weeks straight to put out a fire because of poor design; I can tell you without a doubt that doing great design doesn't take anywhere near as much of a toll on your body and mind as doing an endless marathon; I've severely damaged interpersonal relationships (that I can't undamage) through these marathons.