No, you weren't wrong. You are an ethical person with integrity and she obviously isn't at times. I think others probably felt as you did, were too timid to say what you said, and probably are glad that you said it.
My motto has always been, speak your mind quietly and nobody will ever wonder about your motives. In my book I think you must be an authentic person...and that's a compliment!
The past has passed and don't waste another minute re-viewing it because nothing will change and only you will feel bad. Put on some good music now and sing to it while you quilt!