I don't think SASS/LESS/SCSS fall in the same category at all. The ability to nest selectors alone makes stylesheets more readable and easier to work on. If the rest of the team likes SASS but you don't, because I guess you are a masochist, you can just write regular CSS without using the SASS features.

Plus sass is a dev dependency. Even if my team wasn't using it, I could write SASS on my machine and compile before committing the code.