Like @Duncan Taylor posted, it takes time and dedication to create wealth. I view wealth and income separately. Income is what you create now to spend and use to live and wealth is what is created overtime based on how you spent your income. For example, if I save $4 on a starbuck's coffee now, that is money that I can use on other day-to-day expenses. In turn, those savings can be added to my investment capital or it becomes money that I do not have to take from my investment capital. At some point, I have saved up enough money to buy a property. As a result, the savings is returned to me over time, not once but compounded each month of each year as long as I own that property.
This is how I have approached my investments. In the beginning it was slow and I did not feel like I was making any headway. Also, it was tough to save and to do without while our friends and family bought nice cars and went on trips. However, I eventually felt the winds turn and now my investments continue to grow without much additonal help from me. Now, my friends and family are struggling to repay the debts they accumulated and my wife and I are the ones reaping the benefits of our earlier lifestyle.
Also, to say that a person cannot have much of a savings on 50K or less is just an excuse to not make the tough decisions. I have a friend and his parents made 30K a year. They raised him and his sister on 15K and they saved the other 15K. When his parents retired they had saved almost a million dollars. Everyone maybe not be able to do this but saving is just a matter of prioritizing your spending.