You are totally right.
Sometimes, especially while having a job that you don’t really love, it is very important to do it well.
I worked as a waitress several years ago, after moving to a new country. When I told about it to people I know, some of them suggested that to keep it out of my resume in future.
I never followed their advice. During that time I got lots of professional lessons, which are valuable at any business field. And I never feel embarrassed about any step of my professional way.