SOM Q&A 29 July 2019 (00:00-00:58) with Sayadaw U Tejaniya https://www.youtube.com/watch?v=k-SV79q_r8s&t=10s
Yogi: If I do something that can benefit somebody, but the intention is not pure, should I do it?
Sayadaw: Good intention is more important than good action because it is only with good intention that we can say that the action is good.
If the defilement decreases, you can go ahead, but if the defilement increases you should not do it. Practicing that is meditation.