Are you content with living middle class or are you actively trying to increase your income?

As of right now we are pretty comfortable and I would say fortunate to be in the situation we are in. The sound of more money is always nice but at what cost? Right now I'm really enjoying the balance of our life and ok that we don't have all the nice things. With the pressures of social media and friends/family I'm curious if a lot of middle class families are like us or still actively trying to reach that next level?