high salaries create inflation at different rates for different groups of people depending on their marginal propensity to consume. if you give $5k to someone living on $20k vs $200k annual income, the $20k person is much more likely to spend most or all of that $5k on food, housing, etc. - variables that directly affect inflation. the $200k person may invest it or save it in a bank account, removing it from M0 and M1 so it doesn't show up in the inflation statistics, or in the price you pay for staple goods. this is a large part of the reason we're not seeing any inflation today even though unemployment is historically low - there are no wage gains going to the lower earners who have a high propensity to consume and spend.
there always has to be a balance between those who own the capital and those who work the capital for society to function. otherwise the free market functioning without any ethical or moral underpinnings would return us to slavery - ownership of other human beings as just another form of capital