Regarding her reputation, I'm a Lamb (Mariah fan) and I could easily name several times when Mariah's Reputation was down as hell (NYE, Rockefeller, Glitter Era...and also when her IG was full of revealing Pics bc of her old manager.) The public was mocking her so badly but it has recovered now.
Madonna's reputation isn't lost, she can and will come back strong with the right acts.