It was actually rumored that underneath that bathrobe he wore silk suits and would remove his robe at meetings. Regardless, not everyone's a showboat personality, some people just know who they are and what they're capable of. As far as dying in jail, they didn't get him until he was already a dying senior citizen. If I'm a dying senior citizen I don't give a fuck where I die, gotta die somewhere. Especially knowing I gave the government the blues for decades first.