you thought everyone was good?
I thought it painted the wizard in a very negative light as the true villian. Glinda was too caught up in her image and prestige to do the right thing and so she "let" the false stories about elphaba run free even though she knew differently. She was a bit of an airhead but not innocent either.
Makes you wonder who else gets excoriated in the court of public opinion unfairly and unjustly by the real villains. I bet it happens all the time.