Without hard work performance enhancers enhance nothing. The athlete still has to do all the work to build all the muscle and stamina, and make other structural improvements - the enhancers just make it faster and easier to heal from the strain, increase the amount of time that the athlete can do the hard work, and improve the efficiency of the body in training.
So the natural ability has to already be in place and the willingness to work extra hard for added hours is still needed when using performance enhancers.
So it is a false dichotomy - natural ability vs. enhanced ability.
Of course. I wouldn't argue otherwise. No one would say that someone like Bonds would have been a terrible hitter without steroids. Or McGwire. They both would have been very good baseball players anyway. They had natural talent and put in the hard work. Look at Clemens, he took stuff but still had one of the hardest work ethics when it came to working out and practicing. But, when comparing someone like Griffey Jr., who (at least I hope not) has not used anything artificial, to someone like Bonds, who almost definitely did use something artificial to gain an advantage, I will take Griffey Jr. Maybe it would have been more accurate to say only natural talent vs. enhanced natural talent.
Some of the people who have lower numbers will start to be seen in a greater light when compared to all these people who took drugs. Now the numbers don't look as great.