I don't think you're wrong to feel that way. Perhaps my expectations of a sponsor are too high. I would have said something to him about it and let him know that this is why I would feel uncomfortable telling him anything about me -- good or bad.
Some people have no business sponsoring. Yes, we all make mistakes and none of us are perfect -- which is why we have Step 10. However, the reason we have all 12 Steps -- is so that a spiritual awakening (personality transformation) can take place. If they haven't had that spiritual awakening -- as THE result of THESE steps -- they're trying to pass on something -- that they haven't got.
Each of us is a Member of the Fellowship. Sponsor or no sponsor, sponsoring or not sponsoring, being engaged and active in other types of service -- or not -- the highest level that any of us can achieve is: "Member."
I get better as a result of my mistakes -- IF -- the mistake reaches my awareness AND I take corrective actions to change. Most often, my mistakes are revealed to me through my practice of the 10th Step. But, not all of them are. I need others in the Fellowship to be my mirror. To assist me in seeing things about myself that they can see -- that I can't see -- until, I can see it.
Not everyone feels this way -- but I feel, that when someone tells me what they see in me -- regardless if it's factual or not, or reality or not, -- I can get better, when they share their feedback with me. I want and encourage others in the fellowship to call me on my crap that needs to be flushed. So, they are being "helpful" to me when they notice my wrongs and bring it to my attention.