I work longer hours than most people at my workplace, and probably do 2-4 hours of music "work" every night too. If I have the energy to stay awake and worry about my ethical choices surely those who go home after 8 hours do too?
Also, how is "just do the best you can" any sort of solution?
How do people go through life ignoring the fact that they're (largely indirectly) harming other people, animals, the whole planet? I'm sure I used to manage it but no idea how?!