Greed

The exploiters and the greedy are frustrated in communism and abusive in capitalism.
All too often, our personal lives, families, interests, and spiritual pursuits are compromised due to "excessive" material desires, financial pursuits, and incurred debt thereof.
Excessive over-spending is similar to excessive over drinking. The natural consequences of these indulgences can bring back to you a harsh reality check that you must eventually own up to and pay.
Capitalism for the greedy or not - charge others whatever you can get out of them, OR, charge a reasonable price for a reasonable product and make a reasonable profit - a win for the buyer, for the seller and for the product.
Many are in business to leverage unfair profits - seeking profits that they don't deserve and haven't earned.
Although highly sought after by such, paradise is out of reach to the corrupt, selfish, and gluttonous. The two simply don't exist in the same space.
After your basic needs are comfortably met, if you rely too much on the outer or material world to fulfill you, rather your own development, talents, and nature as an individual dynamic person, you're heading for a meager level of satisfaction with your life.