Saw a Facebook post claiming “… a renowned psychologist believes that…” which made me curious. Such a psychologist ought to have thousands of academic journal citations. So, I looked up the name on Google Scholar and saw one to five. The most highly cited stuff was about metaphysical stuff that psychologists refute.
Roy F. Baumeister is what I would call a renowned psychologist. His motivation article has over 13,000 citations. His ego-depletion, which is where I know him, has almost 4,000. People know about his work and cite his in their own. That is renowned.
The thing that prompted this is clickbait pseudoscience bullshit. Calling the creator renowned is Appeal to Authority so probably quite effective.