If they let sheer greed allow them to keep taking beyond what is healthy for the economy it will cost them more in the medium term. So it's actually a self balancing model though there will be offsets here and there.
Einstein, "science without religion is lame, religion without science is blind."
Its an argument with no statistical evidence in your favor. Try again.
From your link:
"By far, most of the alcohol is bought by people in the upper-income brackets. People in the bottom quintile consume only about eight percent of alcoholic beverages.
Alcohol purchases among those consumers in the lowest income quintile are highly concentrated in a relatively small percentage of families."