Oh boy. Another one of these posts.
While you can self-serve advertising, it is not necessarily a good idea, in the same way that representing yourself in court is not necessarily a good idea.
Facebook cares much less about fraud than Google does, because FB has been under much less external pressure from shareholders to do it. That is not to say that various Google properties do not have fraud issues still. This is reflected in the price differentials.
After all, entire IPOs built around Adsense fraud occurred in the mid-2000s. There have been countless small businesses built around link fraud. It is quite likely that some of the major media names built on social traffic are also based in part upon defrauding social advertisers, because as of yet, few have cared about it, and many investors will just reward companies based on trivially faked traffic metrics.
But guess what? Circulation fraud is a problem that has been with us for over a century in media. Some combination of the price system, auditing, direct response ad testing, corporate incompetence, the good ol' boy network, and other methods have kept it from making advertising either totally useless or totally risk free.
Despite this, here are some issues that could help you advertise better in the future:
1. This is not a good ad. The copy is bad. The illustration is bad. The call to action is unwieldy. The logo placement is haphazard. The headline is Wrong. The human figure is in the wrong position. The button placement is haphazard. You would be better off plagiarizing ads from Mint and swapping out the logos and colors. If you want to keep the lady accountant mascot, put her to the left of whatever copy you want the visitor to read, and make her look at it.
2. The demographics you selected might as well have been at random. Market research is not throwing a dart at the entire planet and targeting whatever the dart landed on.
3. FB != Adwords in the same way that a newspaper != the yellow pages != a niche interest magazine != radio != flyers != e-mail spam != direct mail != a catalog and so on and so on and so on.
4. Your budget is so small that it barely qualifies as a test campaign. You ran a test campaign and discovered a hazard to avoid. That is the point of the early tests. If you run out of budget before you can discover a profitable marketing strategy, your tests will uncover that you are out of business.
In this case, you are dazzling yourself with your measurements because it is easier for you to do so than it is to think at a higher level about your objectives and the methods that you want to use to achieve them given your resources. You could call this Silicon Valley Degenerative Metrics Dementia. Sadly, there is no known cure for SVDMD.
I could personally care less if Facebook goes out of business, but as long as real people with wallets continue to use it, it will have some utility to advertisers, so long as they put forth at least some good faith effort to control their bot/fraud/misclick problems.
Considering some of the things that I have seen with Facebook, I am not confident that they really care, because many investors will reward them when they count bot users (or human users living in third world conditions) as if they were humans with first world bankrolls. There is no comparable Matt Cutts figure for Facebook. I think the real money on the platform, like was the case with Google for a long time, is on the criminal side.
Hopefully some short sellers are paying attention to these stories, because terror is the only thing that will induce Facebook to stop its absurd gyrations on the product side and actually police their platform. Short sellers can orchestrate a PR campaign and either pressure Facebook to start caring or can just make a lot of money by torpedoing the firm through aggressively publicizing its failures.
All that being said, I hope that this is helpful to you, and I am glad that more businesses are learning that online advertising is difficult, complex, and risky (like advertising everywhere and always in all mediums over all time periods using all sorts of technologies).