Money's fine, I guess, but real friends who have your back are way more important. Close friends stick with you through good times and bad. Not just when you're pickin' up the tab at the bar! So be wise how you spend, not throwing money around just cause you got it now. Buy things you really like but save some for later, and you'll find yourself with true genuine people who care about the real you. And not with fake friends, who only care about your money.
Yes true friends are really important and you can only find this kind of friends when you haven't gotten money, when you were still struggling. When you have started seeing money it will be difficult to understand who is a true friend. No matter how much wealth you have amassed, you should never forget the few friends that were there for you because they are the real friends. Many make this mistake, the moment they have made money, they tend to forget those old friends that were with them and go for brand new friends thinking that they are the people who now matches his new status and standard. He/she has forgotten that what he thinks is the new standard are just there because of his money and the moment the money is not there they will all run away. There is nothing bad if you upgrade the standard of those your old friends that were with you when you had no funds. If you change their lives and invest in them, if you eventually go broke tomorrow, they will be there to raise you up again. They will be happy to support you.