Worlds Strongest Man

I don't know if this was asked before but here goes. Why is it that some of these competitors look very good-almost bodybuilder type while others fat and bloated. Is it just the substance and diet there on?

As always diet is the factor. Also some people are leaner than others.Example of Dedprez with his frekin 5% year round bf%

Just like in every walk of life, some of them probably care what they look like, too, and some don't