Sounds like you've worked with quite a lot of wannabe rockstar programmers. Look, you're not wrong - there are certainly mediocre programmers out there who have decided that quantity is its own quality, and can bang out lots of buggy code really quickly. However, just like there are a lot of middling to good musicians out there, but only a few truly great ones, there's something that separates the good from the great, and the same goes for programmers.

Unfortunately for us mere mortals, programming is not quite a performance art (despite the existence of /r/watchpeoplecode), so there's not anything to point at globally as this is what a great programmer looks like.

Moreover, a company's culture is the culture - if they put up with assholes who can program a little bit, they'll also put up with assholes in be other positions for different reason.

Personally I'd choose somewhere else to work.