If you think those guys got or will get out without consequences, you`re fooling yourself.
Some are more succeptible to spine injuries while others can have different problems, they just don`t talk about them publicly.
Hormone levels, heart and blood pressure problems, joint and spine degeneration, psychological problems,... it is just not talked about because it`s bad for their image...
Only simpletons would truly believe that there would be zero consequences or problems for them
As you stated some are more susceptible to various types of injuries & or a variety of other issues
Why would it be bad for their image admitting they have or have had issues
They made the most of their genetics & talent, dedicated themselves to doing what was required
To reach the top in their respective Sports.
Sometimes no doubt pushing their minds & bodies to hard & suffering the consequences.
Countless numbers of sedentary people have issues / illnesses / injuries yet are not pushing
Their minds & bodies so why would it be any different for those who are.