I don't think working harder will make you a lot of money. If that statement is true than janitors will earn more compared to bank managers. What I am trying to say is that the more high your rank os the higher your pay is. Also rich people thend not to work but let their money work for them. Their money working for them is the key for them to get more rich
Obviously, you should work smarter
Those who got higher didn't necessarily work harder. In fact, they likely didn't even work as hard as their colleagues. In other words, they worked harder toward getting higher in rank, whatever it might mean in practice, and in most cases it doesn't mean working more. A janitor working hard will just end up being an excellent janitor, but he will likely remain a janitor for the rest of his life
Indeed, working hard to try and get more money is not enough because like said a janitor will always be a janitor no matter how hard he works, you always have to work hard in order to achieve something and progress like work hard to get money so you can get better education so you can find a better job that pays more money and that applies to bitcoin as well.
Smarter works will fetch more reward than how harder we are putting our efforts in some worthless fields, for example faucets. At the same time if we work on select faucets with some good number of referrals then we can find the rewards for our efforts and this explains how smart work is better.