What are the main reasons of Corruption?

The reason these two cause corruption is because power gives someone the ability to rule more than one person, making them abuse their power for their own personal gain. Money is a source of power, money makes it so you can peer pressure someone into doing something for money. An example of this is how rich people in the world use their money to make people do what they want, they can make someone do something embarrassing, bad, or maybe even illegal. This is just so they can get money, this is why money is a source of power, you can abuse it on who is desperate for it.