Typing "how to get rich quick" then hitting the search button on your PC will give you different (and even ridiculous) ways of making a dishonest living. Everything sounds so exciting and simply too good to be true. And most of the time, these are either scams or simply lies. Thus, many people don't really believe that there are ways to get rich quick -- unless of course, a distant relative died and left you his millions.
Send relevant writing samples. If someone asks for a marketing writing sample, send them marketing writing samples. Don’t send a finance article. Or a fitness one. It’s hard for a hiring manager to know how well you understand the niche’s industry if they can’t see a relevant writing sample. Apply to opportunities suited to your skill set and experience. Also, if your pitch doesn’t have a list of links to writing samples, it’s going to get ignored.