For example look the famous drug cartels who been arrested by FBI If you cooperate and snich on your own people aswell you don't get punished and you willing to give money to USA and it's not small money .... it's not about morals the USA don't care about morals or that you do good things or bad guys like trump have very expensive lifestyle and no matter from where or how the money must come in always for them.
So If Putin changes his mind even If he kill more people usa is always ready to deal because usa It's not about morals or what is right or wrong but only about profit and money and power.
I do not know how the government works in the US because maybe the difference in the country of residence and the law is always a problem because maybe they can be paid or bribed to lighten someone who gets a sentence. Every leader is seen differently by everyone, pros and cons have become a habit for both camps of supporters. The US has become a strong country that has influence in almost many countries and it is the ideal of most countries to rule.
Politics cannot be separated from morals even though the perpetrators of interests do something beyond their capabilities. When faced with power they forget that the mandate given by the community must be utilized as well as possible. However it still speaks to seize power and whoever is strong will become the leader and power and money cannot be separated in its journey.