Fixing bugs is useful, but if that's all someone does, that usually means the company's development process is bad. The developer of code should be ensuring it

Fixing bugs is useful, but if that's all someone does, that usually means the company's development process is bad. The developer of code should be ensuring it's bug-free, along with the rest of their team (i.e. code reviews, unit testing, system testing, etc.), not committing a bunch of crap to master and then expecting others to fix all their bugs.