It's true that investments don't grow overnight and it requires tough patience on it for see its growth. Many of the newbies in investing think that it will just grow so fast at the rate that they want to be but that's not how it goes.
Warren Buffet alone only returns 29% per year. And that means if we invest $10k, it will only be $12.9k next year, not immediately becoming sultan.
If it's 29% annually and the example you've given is $10k then the APY should be $2,900 instead of $12,900. It's true that we won't be in that position of being like a sultan or highness with these investments. But someone who understands the process that this is good money and you just need to be wise and have more of them so that these incomes especially the passive ones will just come to you with ease. But at the start of it, this is the hardest part where you'll need to dedicate a lot of time to learn and to test and at the same time, a lot of money.