Different people seem to weight these issues differently in their understanding of prestige. Most people seem to implicitly view prestige as a weighted average of income and education and this is the operational definition used in indices like DSI and ISEI. However other people (especially in the working class) seem to have more moralized notions of how much a job helps society and would, for instance, rate doctors high and lawyers low even though both jobs require postgraduate degrees and earn high incomes.