I think emperor tiberius did nothing wrong
Why do you think he was right?
He lived in the right time period. He didn't need to be a good person, as it was not expected of him and thus he could be as much an asshole as he wanted and nobody would blame him.
Being that emperor tiberius was an asshole and not a good person by your own account, he should not be supported as this is evil. Find a better role model to set your life upon.
I'm going to pretend like I never got that quote. Everyone knows it was a bad time and tiberius had to do what he did.
I just do not feel the guy is the proper role model. There are much better role models we could choose from.