Whether their lives are "sucking" is a matter of perspective. There are billions of people around the world who would be only too grateful for a life that "sucks" as much as theirs do. You'll find people from all walks of life who have convinced themselves that their life sucks and that, if only they got that raise, or if the economy grew at x % or if the guy who talks like them became president, it would suck less. As long as the majority of people keep looking to external factors to determine their happiness and satisfaction with life, your society will always be vulnerable to populism.