Interesting topic. Brings to my mind the age old expression - "the road to hell is paved with good intentions."
I always thought that phrase was kind of silly and illogical. I think if someone is really trying to do good with the most loving intentions within their heart, despite whatever failed or misguided efforts they make, the ultimate outcome for that person would not be an evil one.
Still - I don't think that all evil and good actions are completely returned back to those who practice them. I think many of these things are probably forgotten, or perhaps not really considered all that consequential in the grand scheme of things.
So yeah, I think consistently good and evil intent ultimately bring about good and evil outcomes to those who practice them. Sometimes it might not bring these things to the person(s) with the good/evil intents right away though.