That's true but the point of working out for regular people is to benefit their body, look good, feel good and have that strength vs. the average person who doesn't work out, not so much to be useful lifting heavy objects.
To your point, a lot of hobbies are about creating something that wasn't possible before without the investment of time, which is one reason it's rewarding. If people could just take a pill to get muscles to skip all the training, I'm sure a lot of people who put in time to train regularly would feel cheated out of their accomplishment, especially if nobody could tell if they did it manually or with a pill and if everybody started to have the same musculature with no effort.
To your point, a lot of hobbies are about creating something that wasn't possible before without the investment of time, which is one reason it's rewarding. If people could just take a pill to get muscles to skip all the training, I'm sure a lot of people who put in time to train regularly would feel cheated out of their accomplishment, especially if nobody could tell if they did it manually or with a pill and if everybody started to have the same musculature with no effort.