You are asking the wrong question. The question is "what are they losing from this" and the answer is nothing. They have committed war crimes for decades and not only is nobody turning away from them instead they get pumped full of even more and better weapons. Look at all the aid the west (mainly US) is sending them.
Why would they ever think about potential consequences if there are never any?
Would be nice if someone else would be stepping up as well. Germany hardly has any military to speak of yet it is somehow delivering the most weapons in recent months/weeks.