Saying "greed" comes from people who fundamentally believe economics doesn't exist, or don't understand it. Everyone in the economy is "greedy". Consumers want to pay the lowest possible prices, and producers want to generate the most profit. Nobody starts a business to be a charity, and businesses will always set their prices to maximize profits.
If prices have gone up, the question to ask is why. Is there not enough competition? Have input prices risen? Why are consumers willing to pay more? Saying greed is just a bullshit boogeymanization that politicians like to spout.