How come steroid users have no shame in using steroids? Even though it makes them make progress faster than if they were natural?

Im thinking today about guys who abuse steroids. Is integrity out the window with these guys or what? Not sure if this offends you or not, but I find it very silly how a man could look at himself in the mirror or live with himself knowing that his gains, even though he has put in some hard work, would be far less if they were natural. Or even knowing that their bodies are not capable naturally of producing the results they have made with the abuse of steroids.

Does this just come down to plain old egomania and they don't really care about anything else no matter what it takes to get there?