I agree that the problem is that the company doesn't seem to use requirements to guide the daily work. It should be easy to decide whether certain work is neces

I agree that the problem is that the company doesn't seem to use requirements to guide the daily work. It should be easy to decide whether certain work is necessary - either you have a requirement or you don't. Without requirements, people will always leave a trail of chaos in their wake as they do whatever is fun or good for their career and resume. The only advice I have for OP is to not be the sucker who acts as janitor for the messes they leave behind.