I don't think this is true anymore.
" Let me tell you something about Hew-mons, Nephew. They're a wonderful, friendly people, as long as their bellies are full and their holosuites are working. But take away their creature comforts, deprive them of food, sleep, sonic showers, put their lives in jeopardy over an extended period of time and those same friendly, intelligent, wonderful people... will become as nasty and as violent as the most bloodthirsty Klingon. You don't believe me? Look at those faces. Look in their eyes. "
"You don't understand. Ferengi workers don't want to stop the exploitation. We want to find a way to become the exploiters"
There are even biological signs of this shift. Like dropping testosterone levels in men.
And how many people lived pretty sad lives being nothing more than serfs or farmers, without even the comfort of a distraction?
Enjoy a short brutal life with all that extra testosterone.