They must have outcompeted Musk at intelligence and/or insanity with their dedication into maximizing production volume of liquid fueled rocket engines.

Tom Mueller was a VP of propulsion at TRW Inc., which, among numerous other things you know from textbooks, made the Apollo LM descent engine, as well as early Space Shuttle TDRS data relay system sats. Calling Mueller a guy interested with engines having issues with his bosses is like referring to Craig Federighi as a guy interested in designing his own laptop.

I guess now that everyone knows about Elon, and Elon himself probably becoming more paranoid from both age and after SpaceX years and exposure to Twitter infoflood without adequate mental immunity, on top of most people who'd be in position to meet him not being as smart and quietly lunatic as literal Old Space trained rocket scientists, the scheme of temporarily impinging ideas upon Musk so to securely attaching the funding for your own thing do not work so well anymore.