I don't know if you're being sarcastic(sounds like you are!) but indeed a lot of engineers left Russia after the war in Ukraine started as they didn't want to be drafted and didn't want to contribute to the war effort in some way, even if indirectly. Of course, many stayed or even willingly help. See how many engineers from Iran work abroad too, for moral and other reasons.

The point is - this happens everywhere, it's not just some weird western thing.