To me it is not, for man not only makes man to be wicked but also to be kind sometimes. Therefore is usually in two ways it is either the person changes to good or bad. For instance a person who has always been so callous could and or may one day change to very subtle and kind person due to something someone might have done to him or her likewise one who is gentle, generous and humble may change to a hardened, wicked and haughty person and even a miser.
A very good example is a play; Good Woman of Setzuan written by Bertolt Brecht. Another instance is the working environment where employees and employers changes towards one another from time to time due to behaviour and or attitude exhibited by both parties either due to breaching of trust by from employees or breach of agreement from employers or vice versa. Not only between employers and their employees but this can also be found in the home where you have a gentle, loving and caring husband or wife but who later changes to the negative due to the behaviour of other parties aside external influences however it could be a non caring husband changing to a caring one, still, due to the behaviour of the spouse. You could have helped someone by the road side of which might have led to your upliftment or same and it lands you in trouble this may lead you to canvass to people to be either good or bad depending on which of the experience you went through. So, let us always remember and bear in mind that man does not only makes man to be wicked but that it could be vice versa, thus, it is better to say – “man makes man to change”