What you must know is that where ever there is money there must be disagreement between two parties or entities just to make sure one gains more than the other for their selfish gain and interest, that could also leads to bribery & corruption, conflicts as you said but with good quality control towards one another base on their educational background they may control their interest of greed towards the money. For instance; taking example from my country Nigeria how we have bad leaders and they don't care for her citizens whether things are fair with them or but immediately they are sworn into Power as President, Governors or whatever position they may decides to be, it turns to self interest because there is money involved in that particular position so, greed shows up quickly.
in many cases or there is a flow of money in the welfare of the people, that's where corrupt practices occur, they violate the rules or change data for entitled recipients, where in many countries they carry out acts of corruption in them, greed has taken over their souls, corruption continues to occur, destroying many countries that should be advanced, because corruption hinders it because of crimes that are very detrimental to many people.