That's not as easy as that.
Having dealt in your formative childhood years with poor health due to poor medical care where doctors just pump you with antibiotics and fuck you up, poor dentists and orthodontists who make your conditions worse, living in loud polluted neighborhoods where you're not getting quality air and sleep, not getting proper nutrition as a kid due to poverty, getting bullied and harassed every day leading to constant stress and anxiety, etc, all these impact your looks from your early life and are not in your direct control as you make it be, and won't easily get remedied no matter how much you brush your teeth, eat well and work out in adulthood.
Steroids help you quickly and easily become muscular, you'll still be ugly, but jacked.
As for the rest, did Mr. Bezos get a foot taller and a full head of hair when I wasn’t paying attention?
He does look healthier and happier than he did in the past though, so good for him.
Not always Mr. Swollen.
Just going to the gym and doing random exercises might sometimes make your posture and pain worse.
That's where profesional medical help comes in, as in x-rays, doctors, physiotherapists and massage, correction surgery and implants, etc.
Also, it's relevant that Bezos is one of the guys blowing money on life extension tech. So I think there's 0 chance he sees anabolics (or other enhancements) as a good risk:reward when he certainly fantasizes about there being a possibility of life extension happening within his lifetime.
I doubt this is really true, you're just seeing the results of frequently getting photographed/recorded in staged managed situations by professional photographers, probably with makeup. That's also something that happens more often when you're wealthy.
IMHO sort of but when you massively overdo it like some you start looking pretty freakish. Also I don't think there is any evidence Bezos had any plastic surgery done? He probably just got a better stylist. Must OTH.. well...
Just look at Jeff Bezos and Elon Musk before and after they became wealthy, they're better looking despite being 10-20 years older.
Basically, higher IQ can help you build wealth, and higher wealth can help you become better looking, but high IQ is not directly responsible for better looks.