Big Pharm has no intention in testing the effectiveness in herbs because there is no profit in it for them...
Rubbish. There is profit in anything that can be bought and sold. There is profit to be had in carrots, Rubiks cubes, oregano and hula hoops. If there is no profit in your weed it's because nobody has proven it does a damn thing.
... and if they proved the effectiveness, they would go out of business.
Nope. They could just switch to selling the herb. That's how business works. Somebody always builds a better mousetrap. It's simply laughable to suggest companies don't build one because theirs would then be obsolete. You really should be embarrassed for suggesting something so ludicrous.