You can't save your way to riches if you don't have a big enough income to save just like you can't dig a big hole if your shovel is tiny. Too many people, too many financial websites, too many financial advisors, too many financial shows have for too long advocated saving with a deep lack of attention to the more important sid of the equation: INCOME.
Of course, even if you have an enormous income but still manage to spend it all, you won't build wealth. But that is not at all relevant to what we're discussing here. What we're saying is that there are simple mathematical and physical principles govern the world we live in and based on these principles there's something we know that's true:
the maximum amount you can save is your full income - this would be not possible in most cases it would require not spending anything
So, if you're earning $30,000 a year but are the most magnificent saver in the world, the most you can possibly save is $30,000 but realistically you'll be considered an ultra-saver if you manage to save $20,000 a year.
Contrast that $30,000 per year example with someone who earns $300,000 a year - clearly that individual has a much bigger shovel and has a lot more room to take advantage of saving. In effect, this person who makes $300,000 can benefit more from saving because the more he/she saves the more they can put away for building wealth up to their income. In effect, if they can spend $10,000 a year like the person in the $30,000 example, they can save a huge pile of money every year and build a lot of wealth.
People should be focused on saving, but they should equally (if not more intensely) be focused on generating more income for themselves os that they can put more money aside. This is easier said than done and that's the reason most financial resources tend to focus on saving rather than increasing income - everyone simply wants to pick the low-hanging fruit.