thats because most suits suck, and if a job forces you to wear suits then you should be wearing one for it.
Stephan Winkelmann, CEO of Lamborghini can wear the hell out of suit. And yeah, he's built like a twink. But his tailored suits are on point. His ties are the shit. Straight boss, because he is the boss.
And his causal dress is on point as well.
The best look is "semi-big" or athletic. You still can have the big arms and chest. Just keep the neck and delts down. As well as the legs. And be cut.
None of these big dudes (other than Phil and Shawn Ray) look remotely good in a suit. And it seems like many don't own a suit, or even decent dress pants (just look at the Aaron Singerman's wedding).
Pathetic. Always have a decent pair of dress pants or khakis, and a sports coat. Because you never know when you might have to go to function, a nice restaurant, a wedding, a funeral, or job interview.