Not all people become corruption. if you spoil people always help them or praise they might become corrupt and arrogant. teach them how work together and care each other... will marisa fault he force reimu sex with him not bother teach reimu how first hunt food and care each other and help each other only marisa in brain sex so he cause make good reimu become bad deibu.
The key for success its combine the money and power and help each other and food. never do advantage people help you if you steal all victory you might not survie next problem. if you keep only your seft the money and not help others all of them gonna against to you.... for sure you get bankrupt.
bro i get it now what you mean now. all reimu meet yukkuri are bad influence mean shithead only reimu good head. when reimu she meet marisa. that marisa bad yukkuri to she force sex with reimu not bother teach reimu first how cooperative help each other like make a lot food first order to survive before sex. all reimu meet yukkuri are very selfish only think they seft. very rare to see good head yukkuri. so sad good reimu has been bad influence by them all.