Sinister, I respectfully disagree with some of the things you said.
Magick is only limited by your imagination.
Why would you allow yourself to take on an entirely different approach to and opinion of magick because one demon did not follow thru on his word? Yes, some demons are greed oriented, Eric even states this outright in WOD as a warning to be careful and make your boundaries known when entering into a pact as some will only take from you and never give in return, except to maybe those who are persistant and also make it known that they are not the demon’s bitch either. But not all of them are like this.
And it’s not just those who grew up in a rich and loving family who succeed in magick, both sides can be just as equal. A rich greedy bastard will succeed at magick because his desire to obtain more money and material possessions is strong enough to make his magickal working persistant. Whereas a poor person with nothing with lose, because they have nothing, will be just as persistant as the rich guy because he wants to enjoy life and be able to manifest his needs, even if only his basic needs and some form of contentment, that can be enough to drive a poor man to become insanely persistant with magick in hopes of finding a good job so he can support himself without all of the misery that is caused by not having food, clothing, shelter, a good car, etc.
So magickal success or the strength thereof, is not limited to any particular group of people. Anyone can achieve their goals thru magick if their intent and will is strong enough. I cannot believe that not one single person in this world has never used magick to gain fame, insane wealth, a spot on the forbes list, a CEO position at a fortune 500 company. Someone out there has most likely had this type of success before, it just depends on the lengths that you’re willing to go to with self sacrifice, magick, and evocation to make your desires manifest. Celebrities sometimes mention being involved in the occult and that the occult is how they were able to get to where they are now. Some may be saying this just for show and shock factor, but I guarantee at least one of them was telling the truth.