Debian is open source, there is no incentive to be "responsible for it", oh poor me, someone got a bug. If it's paid for through a job your argument is sound.
Sure there is. Contributing to open source is a privilege, not a right. Abuse it, and find yourself unwelcome as a future contributor
When I am at home practicing my musical instrument or learning to paint, those aren’t paid activities, so I can’t demand high standards for myself.
When Habitat for Humanity is looking for volunteers to do electrical and plumbing on homes, they have to allow unlicensed random folks do it.
This is not how life works at all.