I can only think of one example off the top of my head of supposed adherents being used to discredit the philosophy (see Eddie Lampert with Sears), whereas the inverse is true for innumerable cases, where "they read/follow/worship Ayn Rand" is used as a negative qualifier for the person.

John Oliver's segment on Ayn Rand (Last Week Tonight, I forget the name of the segment but it was something to the effect of "Why Is This Still A Thing") did an excellent job summarizing the popular case against her, in all of its disingenuousness: without making an effort to view her statements through the lens of the terms she's defined, it sounds bad compared to vulgar neoliberal sensibilities, and because she herself as a human was less than perfect. It, like every mass media analysis of her or her works I've seen, comes from and is marketed towards a pre-established understanding the Objectivism is wrong.

Also, I'd love to see a source on "everyone who reads" Ayn Rand (or Marx, for that matter, or any author of any written work ever) being toxic sociopaths -- it stands to reason that you'd see her closest adherents, like Onkhar Ghate, Harry Binswanger, Yaron Brook, or Leonard Peikoff being known for acting upon bad ideas if that was all that was in their intellectual orbit, not cherrypicked cases of someone claiming to have read Rand before making questionable or unethical decisions.