Inflation is super complicated because it depends on what types of assets are held by whom and how susceptible those assets are to inflation. For example, high rates of inflation during/after WWII were a large contributing factor in a net reduction in wealth inequality, because much of the wealthy was heavily invested in fixed-return war bonds. Much of the rentier economy of the 19th century elite depended on predictably low (almost nonexistant) inflation in order to sustain their fortunes. Theoretically, the financial assets of today's wealthy should be somewhat less vulnerable to inflation (real returns over the last ~80 years seem to be lower during periods of high inflation but it's also sometimes hard to untangle inflation from the overall state of the economy). Ultimately, inflation is a pretty crude instrument in terms of who it affects; I think it's hard to make sweeping statements about who it's "good" for that hold up well over time.