"Every move has consequences" - That is absolutely brilliant! Is there any better way to explain such an abstract life concept to kids who can't see the consequences of whatever they do?
I can see chess helping with some aspects of their mental health (training calm logical thinking, coping with losing), but I don't think it actually teaches anything about consequences.
It teaches a lot about consequences. Perhaps not on par with chess, because, most popular games demands much less exercise in deliberation and strategic(/critical?) thinking.
I guess because the comment was talking about "most popular video games"?
Yes you took that pawn, but now your knight is in a vulnerable position... maybe there was a better play.