Finally, when the poor see their income shrink while the income of the rich rises, they will buy into the system less.
Personally, I don't buy into the paranormal.
When the poor see people like themselves (in terms of race, religion, age, gender, etc.) getting ahead, they buy into the legitimacy of the system more. 5.
If all the rich are left handed and all the poor are right handed (or some other shared trait), the system seems less meritocratic and thus less just, and the poor buy into the system less.
If there is mobility between the rich and poor, and the attainment of wealth is at least aspirational, the poor buy into the system more. 2.
If the poor believe they have less justice than the rich, they buy into the system less. 4.