Always thought a good comparison to the aviation industry in terms of opportunity and likelihood to get to the top tiers is the entertainment industry. With so many people with stars in their eyes.
Both are like a huge triangle. If you are lucky enough to get to the top the rewards and lifestyle are great that few people ever experience. However there are huge numbers at the bottom that never get even close to the top or even off the bottom rung. Are the odds and cost worth the risk? Only you can decide. I was given this advise back in the early 80's and he same holds true today.( Unless you have very good connections). If you want to make money, find another career. If you just want to enjoy flying, find another career and fly privately.