I guess people go where the incentives are. For at least the last decade that sort of behavior hasn't been punished or has even been rewarded (see: the entire Trump administration).
Meanwhile, being a decent person carries very little benefit anymore. So it's probably not surprising that people no longer take the effort.
> being a decent person carries very little benefit anymore
You're caught up in the toxic rhetoric and justification. Imagine how appealing decent management is now, as a competitive advantage.
And generally, being a decent person is more important than ever.