They get away with it thanks to their rather vociferous and dogged, cultist following that has less interest in seeing the game made and released than they do in arguing that their money was well spent, as if shouting down "detractors" would somehow speed up and improve quality of production. At this point CR is either a madman or a conman. There is not much room left in between.
It's entirely possible that he's neither. Combine the following things :
He resents big developers (in his own words)
He resents working to a time limit (refuses to give dates after missing the 2014 one)
He has a nasty habit of saying yes to daft new features (PG birds)
He adds features he see's elsewhere in games on the fly (PG, VR)
He resents working within a budget (bad memories of freelancer)
He is hostile to criticism (escapist magazine)
He does not like being questioned (reaction to where's star marine gone)
He has assets refactored repeatedly (art department resignations)
He has not communicated his requirements properly to his staff (not a good communicator)
He sacks staff members who question the vision (anecdotal from industry interviews)
He's not mad and he's not a con-man. He's just a bad manager with an inability to recognize that for people to deliver what he wants he needs to tell them what it is, and be consistent about what it is. He also wont employ people who would be willing to ask questions to clarify exactly what's required, as they would appear to him to be questioning the vision.
He needs to stay at home and hire a project manager whose willing to tell him what's feasible and whats poorly understood by the staff then demand information on whats required until it's clear. The problem there is CR's a micro-manager and could never stay away, and would probably sack the project manager unless he was a complete yes-man.