It doesn't surprise me at all.
Very few people see themselves as actual bad people and for many people the lens by which they see and judge themselves is though how others see them.
I've always viewed it as a bit pathetic in males and a sign of poor male role models in an upbringing but it is what it is.
When the tables turn some can't take it.....What happened here has happened many times....Especially with people in 'image' or celebrity roles, some weren't mentally very strong to begin with.....People have even been accused of stuff that they were innocent of and decided to check out because they couldn't stand the feedback. Some can't cope with negativity towards themselves, even when it's because they have created negativity for others. They can't square it....for example, suicides in new prisoners is a known risk.
Arday had achieved much for himself amongst senior academics looking to tick progressive boxes to satisfy their echo chambers. He was there to feed ideological purposes.
When the real world came knocking and demanded accountability, he couldn't cope.