Haha, I've read too many educational/comedic articles as you can tell!
But yeah, of course running is healthier. It was only an example though, which could be substituted with sex, eating, etc. Even gaming. Still though, drugs more or less are going to be the more harmful thing in the end. Which brings me to what I should of brought up earlier:
"What the king does in HIS castle, is his own deal" saying. Or at least my mom and dad say that lol. I use the argument for really anything. In this case, if some dude is smoking a little pot and maintaining a mere 5 x 5 grow operation to support his family, let him be. Chances are, he's not exactly the culprit behind global warning, and frankly, he's not harming anyone. But, shit varies, and that harmless pothead is not always the case at hand because sometimes people ARE being harmed. Take for instance the Mexican cartel in California. My county is dealing with that bullshit as we speak, and I'm sick and tired of it.
Anywho, I'm getting sidetracked. In the end yeah drugs aren't needed, but humans don't need to be living breathing robots. If you need to hit your bong every now and then, feel welcome to. Need to take a drag off a cig? Feel welcome to. Long day of work you say? Make yourself a warm cocktail. Moderation is key though and It'd just be nice if the Earth didn't need to deal with the discovery of cocaine and heroin and stuff.