Ultima IV - taught that to be truly great you needed to do more than just get strong, you needed to practice being humble, having empathy for the poor - all sorts of things of balance had to be achieved to win.
The Sims - playing after thumbing through the 'pattern language' book .. it's interesting to see things play out - and to watch others play - they learn that things they want are expensive and there's not enough money to do what you want and then you die.
Watch Dogs- being able to peer into the lives of every passerby - seeing just 4 lines from a DB - it's easy to pre-judge people - which people are worth stealing from, which people 'deserve' violent 'justice' - things like that - realizing that there are many that see all the people in a similar way -
- it's play to kill sherelly since he's greedy, and knocking google employees unconscious is okay because they only have 1 black employee. The ends justify the means for all the sub-groups/tribes it seems..
Rainbow six siege - concealment is not cover; not for you, not for them. COD is not great this battlefield 4 was better, Six does it well.
The Three Dwarves - it's possible to make a good game for three people to pay at once with co-op needs.
Civ 6 / Empire Earth - no matter how great you are at X (science, military, whatever) - a few barbarians can ruin you, and some zealots could take you over before you can take them out - be humble and enjoy the build when you can't control the other tribes.
Driving different vehicles in the GTA and similar games is helpful to learn - pity that there is not a non-hooker version for 15 year olds to learn some things with.
Max Payne - you can make a dirty, cussing, killing game ,where the good guy does dope to keep going - and sell a lot of copies.. because a lot of people enjoy it.
Watching younger folks play assasins creed you can see how younger minds are being solidly influenced to fight for racial justice.. things like kill the owner / free the slaves and such.
There are many great lessons in many games - I'll be remembering random ones for days/weeks now.