rulamba

“I sometimes think about this attitude and the wonder of I'd be happier by caring less about quality and maintainability than I do right now”

Probably. Do they get paid any less than you? At the end of the day it’s your employer that benefits from your commitment to quality, not you. Your employer is also the one paying your colleague, so unless your his/her boss it’s not really you who gets to judge the quality of their work.

Successful systems that solve real world problems are not perfect. This works in your favor though, as when you release your project, its perfection will be a great competitive advantage