My double life

I am a married high income expatriate in a developing country with one child to a wife who has little interest in sex and makes it clear that since having a son she only views it as a conjugal duty. I support her with a nice lifestyle and what she most wants: a loving father to her son. I no longer make love to her but we sleep in the same bed. I have a mistress who I see four nights a week, I support her financially at three times a typical wage. If the wife and the mistress knew about each other they would probably go feral and attempt violence - against each other and me. I believe I have given things to both that they could not necessarily got by themselves and importantly believe I emotionally satisfy both, within the limits of restricted time spent with both. Am I a bad person?