That sounds reasonable but is naive and does not take into account how corrupt people are. John Ehrlichman, White House counsel to President Nixon said:
"The Nixon campaign in 1968 and the Nixon White House after that had two enemies: the antiwar Left and black people... We knew we couldn’t make it illegal to be either against the war or black. But by getting the public to associate hippies with marijuana and blacks with heroin, and then criminalizing both heavily"[1]
So taking into account things like cultural prejudice. Those things are unlikely to be fixed just with good will and altruism.
"The Nixon campaign in 1968 and the Nixon White House after that had two enemies: the antiwar Left and black people... We knew we couldn’t make it illegal to be either against the war or black. But by getting the public to associate hippies with marijuana and blacks with heroin, and then criminalizing both heavily"[1]
So taking into account things like cultural prejudice. Those things are unlikely to be fixed just with good will and altruism.
[1] http://m.huffpost.com/us/entry/9659888