If a person refuses to see whether they are causing harm even unintentionally… refuses to even try… that's all that matters. Responsibility lies there when the person causes harm. Same for persons who are aware and are personally fine with causing harm for gain. On the other hand, seeing and personally trying to reduce it, a person can atone for harm caused by oneself. These things cannot be forced. Attempts to be fully aware and not cause harm only brings happiness to the one making such attempts in the end. The 'pains of life', which is the purpose for the concept of 'escapes' to exist in the first place, go away completely. You could call such pains either the result of maliciousness or the naivety which aids people who want to cause harm.

This is a decision everyone can only make by themselves.