How has your career progress been in terms of promotions / raises? At my last job I was directly told that part of why my bonus amount was lowered was my attempt to self-limit my hours (which is a good part of why I left right after that review). They weren't thinking about it as a disciplinary issue, but it was clear that all the people who were doing well at the company were those who put in long hours, even if those hours didn't involve working.