I feel like this is especially pervasive in the data and ML fields. Perhaps just to many formally cloistered academic PhDs are cashing in on the corporate rush to data and ML "everything", but have no actual ability to execute or even code.
I went to a large "AI" conference this year and was surprised to see some talks being given by the "VP of ML" at the company I work at. I'd never heard of him or the position before, and when I looked him up in our company directory he appeared to sit somewhere in Pharmacy data science. But it's a massive company, so who knows?
When I attended his first talk wearing our company swag he seemed visibly uncomfortable and...grumpy(?) after he noticed me. His talk was a very non-technical, superficial fly-over of how ML can be used to profile and predict customer spending habits on our company e-commerce domains. Nothing even to do with pharma! At another table session in the day he dropped that his PhD is from MIT. Our company is big -name brand in its field- but by no means does it attract "MIT level" talent; not in pay, problems, or prestige. But again, it's a massive company, so who know? Yet at this point I'm entertaining my own little conference conspiracy theory that this guy is just a corporate cutout.
The next day I ran into him at the conference lunch line and gave him a: "Hey, how's it going! I'm at {our company} too, over in {line-of-business}". He nodded, chuckled to himself, and without even looking up said "oh yeah, you here to call me on my bullshit"? I was so confused that this would be the first thing out of his mouth with no context between us, even as a seeming joke, that I didn't know what to say. He politely excused himself to run to another table session before I could figure out how to respond.
Since then I've tried to track his team and any work/product/output they might provide but for the life of me cannot find anything other than some Jira tickets that get pushed around. But it's a massive company, so who knows?