The happiest people in the world are those with healthy meaningful relationships with other people. These can be with family members, friends or even co-workers. This is true whether you are an extrovert or an introvert.
Wealth in of itself doesn’t make people happy. Absence of money or other stresses in life can adversely affect relationships, but money cannot buy happiness on a sustainable level.
I’ve seen this to be true time and time again as I’ve traveled around the world. The poor young Vietnamese boy taking care of his sick father can be “more” happy than the young affluent American teenager with absent parents.
If we all know this, then why do we tend to take the “good” relationships we have for granted? Why don’t we invest more into our relationship with our loving grandparents, a supportive co-worker, a dependable friend or our spouses? Strange we humans are.