Female led relationships discussion

Why does the D/s dynamic seem to tolerate infidelity so easily? Is it specifically about Bulls? Or am I just being particular. I fully recognize that Bulls and Alpha Males have a high drive for sex; it’s part of their nature… but they shouldn’t cheat on their significant others by default. I’m not asking for total exclusivity from a Bull, but I do expect other women to be aware he’s seeing someone else. Am I incorrect in believing that infidelity is wrong within the D/s community? Given how crucial communication is in this lifestyle, shouldn’t there be FEWER cases of cheating?