I learned very young there are differences, like I literally (NOT figurative at all) couldn't see the motivation behind destroying school equipment, drawing on walls, etc. While for some, it's fun.

But even after all those years, it's just so hard to wrap my head around that.

I think the answer might be that they do have the same values, but they have a different model of the world overall, which calls for different ways of achieving those values.

To take this to an extreme, imagine a person fighting for their life against actual criminals threatening vs a person fighting for their life against a random person they think is a shape-shifting alien impostor. Both are internally justified by the same values, one is externally justified by a more correct perception of reality.