It is the same concept of being the top of a particular field. When you are the best at something, you find that opportunities come to you. To become an expert of something, it is crucial to never stop improving. Successful people invest time, energy, and money in improving themselves, and it might just be the most rewarding investment you can ever make.
Take it seriously. Yes, you’re applying for an online job. Yes, you can do the work in your underwear, but that doesn’t mean it’s not a “real job”. You must treat it as such or they aren’t going to treat you as a serious candidate. You aren’t the only one who wants to work in their underwear. In fact, the competition online is likely higher than it is in your local area.
However, it isn't just about the digital nomad lifestyle that gets people so excited. More so than getting rich by any measure, the masses are merely attempting to wrap their minds around generating a respectable amount of cash, enough to satisfy their expenses and leave a little bit of disposable income at the end of the day. While many look to fulfill that desire, very few, in fact, are able to follow through.
In my (unpopular) opinion, getting a raise is harder than getting a promotion. Think about it from your boss’s perspective, would you rather a) pay more money for the same service, or b) pay more money for additional responsibilities. Alas, if you feel you’re overdue a raise, check out Dr. Randall Hansen’s article on Getting the Raise You Deserve. There are some really useful strategies there.