My suspicion, my awful awful newfound theory, is that there are people with a sincere and even kind of innocent belief that we are all just picking winners, in everything: that ideology, advocacy, analysis, criticism, affinity, even taste and style and association are essentially predictions. That what a person tries to do, the essential task of a person, is to identify who and what is going to come out on top, and align with it. The rest—what you say, what you do—is just enacting your pick and working in service to it.
Maybe. But I would counter with that it's an attitude towards their cynicism. Deep down they know their lies aren't true, they just consider lying in service of power a natural thing.
As an example, witness one Matthew Miller (the Biden press conference guy) who after smirking his way through lies about how Israel is totally going to investigate itself after the latest atrocity, now has appeared in an interview saying he was just representing the administration, that wasn't his own view. He knew he was lying in service of at least atrocities (he isn't ready to admit to it being a genocide), he just considers that natural.
It appears he has stopped smirking, I guess that was his tell that he was lying.