Very indirectly and entirely personally: EVE Online.
I unintentionally became more accustomed to delayed gratification, taught myself how to make micro-optimizations in my life to clear up time, chose to re-invest my time saved investing in new skills, learned (when trying to get a job/promotion) to frame my value in terms of what fulfilling someone else's needs, learned the value of researching both how to do things AND why people recommend those methods over others, and developed a decent sense of risk:reward-informed decision-making.
I unintentionally became more accustomed to delayed gratification, taught myself how to make micro-optimizations in my life to clear up time, chose to re-invest my time saved investing in new skills, learned (when trying to get a job/promotion) to frame my value in terms of what fulfilling someone else's needs, learned the value of researching both how to do things AND why people recommend those methods over others, and developed a decent sense of risk:reward-informed decision-making.
YMMV.