By my measure, Cohen is the only person from Trump world who has redeemed himself. He’s still a slimey hot head, but he sees Trump for what he is, and he’s committed himself to making things right. Of course he’s trying to profit as much as possible, but he serves as an example that even the biggest sycophants can make it out of the cult.
As if anything Trump's done in secret becoming public would harm his reputation.
Trump is basically immune from scandal. The people that vote for him either don't care, are low-information voters that somehow don't even hear about it, don't believe the news reporting on the scandals, or even worse, actively support him because of the scandals.