there is a difference between steroid use and steroid abuse. to say that this bodybuilder had all sorts of health problems and this other seems healthy is meaningless without knowing the amounts, the combinations and what other things they did in their life.
guys who abuse steroids often also abuse stimulants.
if you're going to do steroids, there are some things you can do to protect your health:
1) cycle on and off. equal amount of time off as on. none of these 5 year long cycles.
2) monitor your BP
3) get regular blood tests, including triglycerides, cholesterol, and liver enzymes (liver is only an issue with 17-alpha orals, generally not injectables). avoid saturated fats, add good fats
4) avoid stimulants, including ephedra, large doses of caffiene, and of course cocaine and methamphetamines.
and in my opinion, 5) avoid GH, insulin, and diuretics. a single miscalculated dose of insulin can kill you. misuse of diuretics can kill too.