Bonds for sure is a natural talent that didn't need steroids to get into the HOF, although his numbers would not be as inflated as they are.
More importantly, he would not have passed Aaron as the HR King.
I agree but there are different types of advantages. 50 years ago players would look at stuff that would help them play through pain or be more alert / awake. Muscle enhancing / endurance type substances are a different story.