The guys who were able to take their phsyiques to the big screen are the only guys who ever lived large like Arnold And Lou both of them are doing great except Arnold did almost die(had serious heart problems).
And he lied about the source of his problems, too, since anyone with the defect he claimed to have couldn't have done 25+ years of juicing/heavy lifting but the point is definitely valid, only him and Lou have prospered in the mainstream entertainment world after retiring. He did give Kevin Levrone a freebie film part by talking one of his Hollywood friends into putting him in a C-movie role, but the guy can't act, or be entertaining, and he wanted to do both. So that was a flop.
Pretty much Dwayne Johnson is the only one right now who's making bank after being a wrestler. Unlike bodybuilders, wrestlers do have to have a tiny drop of personality to make it in the industry, since contracts are always short-term except for the top guys.
What Nasser did for a living before he died isn't entirely clear. It looks like he owned or managed a garage/gas station, from the photos on his side picking up garbage or changing oil. I highly doubt he had mechanical aptitude, though. That's basically a trade you have to learn. He also never lost his pro-era size, which suggests he had the money or fronting-abilities to keep his stash coming on a regular basis. You could speculate he went to Egypt to get away from his creditors. I'd believe that.
AFAIK there's still no proof he died, but it's unlikely to be staged. He liked living in southern Californa. I doubt he'd just disappear for a year like that. And the cause of death is very plausible for a guy who's almost 50 and still walks around at 300.