However, as psychiatry teaches us that we are wrong to accept (what leads to) mania, they'd be wrong.

If you believe something, something in direct conflict with that would be wrong.

But, whether there is a real conflict is at least debatable, but probably wrong.

At any rate, there is some, call it meta-wrong in there. But maybe only a meta-right. Indeed, maybe no such opposition as I described.

Call it polemics. Not very Buddhist, I'll admit.