Service out of compulsion, hmmmm......reminds me of the Bible story of Jonah.
i would say that if you or others are moved to go in service/pioneer and follow through with your word (see example of Jonah) even though you did so under compulsion, then ues, your service counts. i think you'd enjoy it more if you were a "cheerful giver" but I would not discount the good vibesfrom keeping your word or honestly reassessing upfront. Your word and actions reflects who you are. Focus on being the best, true you.
If you do not go in service or report due to conscientiously objecting, as I think is my position right now, you can consider it time to refocus and clear the mind fog an all these matters. Jesus and apostles took time away from people to process, pray, find peace.
Many issues are afflicting me right now but morals and ethics are not. They are the ever-shining bright rightness in the world for me - kindness, mercy, love, truth......
This process is helping me find my voice to add to the courage I feel to say "no" and not have to explain myself to those who do not sincerely care or just want to judge and/or condemn me rather than help me.
As for integrity, I don't see logic in slamming most/all witness due to some individuals having questionable integrity. I'd say all humans have issues......and leave it at that.