The question here is, if something, what would you have done differently ? Or, going forward, what are you going to do differently ?
Also, the modern economy is poised against us in terms of preserving the value of our wealth. Because of this, I disagree with your final conclusion (the sweating over investments bit..). The hard part about money is making it, but it's also hard to keep it. Inflation eats away at what you have, furthermore, depending on your country (India in this case..) you don't have 250 years of documented economic history to make your investment decisions.
If you've reached your financial goal, mine is 25x of annual expenses then yes, maybe you are truly financially independent and now free. You have literally bought freedom. You're right, materialistic pursuits will probably never lead to happiness. However, for some the road to financial independence is longer than others. And yes, many people lose the plot along the way ;)
Maybe a more apt title for your post would be: "Having a successful business and a good amount of money buys you freedom" ? :)