Not just Scientology also Aleister Crowley’s Thelema and other assorted nonsense!
Scientists\engineers are not immune to nonsense.
Parsons (1914-1952) co-founded JPL, but was big on self-medicating with booze and dope. He had a little mishap and blew himself up. Work accident. Like Wilhelm Reich, he did useful work, but unlike Reich, he didn't outlive his usefulness.