Greedflation frames the problem around greed. Greed is not the problem.
Lack of competition is the problem. Robber barons are the problem. Citizens united legalizing bribery is the problem.
Ultimately it is deeper than that. Laborers don't know how to exercise power and laborers don't know how to provide consequences when our aristocracy takes advantage of us.
If banks can say "we'll trash the economy if you don't bail us out," but every day people say "we're going to suffer if you don't bail us out," the people in power have to account for these banks, but don't have to care about your suffering.
The banks had a credible threat of force against decision makers making a decision, while the people offered predatory lending had no credible threat of force.
Until laborers can provide a credible threat of force, we should expect to see a continuous decline in labor power, and therefore wages.
Greedflation means lack of unionization.