Greed and gambling. Many people and companies only have one goal: money, money, and more money. Greed is ok when you let others profit from it, but greed for oneself is bad, it makes you ill. The egotistical ambition to always want to earn more money harms both the company and the individual himself. That is the biggest weakness of many managers – the financial crisis has proven this.
So it's ok for someone to earn a lot as long as they share?
Wealth is not necessarily a bad thing when it has been earned in an honest manner and neither other individuals nor the environment suffered for it. As Buddhists we recognize that wealth is a basic prerequisite for a happy life. But a billionaire also only has ten fingers. He can fit three or four rings on each finger, but that would look weird. The satisfaction many millionaires who don't share their wealth have in their heads is fictitious and not real. Rich people should help reduce poverty.