No More Material Interests
First, Marx investigates attitudes towards multiple dimensions of unemployment insurance (in Spain). He finds that here at least, material interest seems a less compelling determinant of attitudes than ideological commitments.
Becker similarly finds a significant role for `other regarding' views in considering whether inequalities perceived as beyond individual control are seen as more unjust, and hence more unjustified.
Filetti argues that psychological needs, rather than material interests, determine redistributive attitudes. Again emphasising perceptions of justice in assessments of empirical distributions of income, the argument is that phenomena of cognitive dissonance may better explain the resistance of those with high incomes to redistributive policies.
Finally, Hicks/Jacobs present a different constraint on the utlity of materialist explanations (this time of vote choice). They question whether low- and middle-income voters (in particular) are equipped to defend their economic interests if the information disseminated in the `economic news' does not accurately track the evolution of gains and losses specific to their income groups.