No drug, not even alcohol, causes the fundamental ills of society. If we're looking for the source of our troubles, we shouldn't test people for drugs, we should test them for stupidity, ignorance, greed and love of power.
We are born knowing nothing and with much striving we learn but a little; yet all the while we are bound by laws that hearken to no plea of ignorance, and measure out their rewards and punishments with calm indifference. In such a state, humility is the virtue of men, and their only defense; to walk humbly with God, never doubting, whatever befall, that His will is good, and that His law is right.
To know the mighty works of God; to comprehend His wisdom and majesty and power; to appreciate, in degree, the wonderful working of His laws, surely all this must be a pleasing and acceptable mode of worship to the Most High to whom ignorance can not be more grateful than knowledge.