"How to win friends and influence people" has blessed everyone I know who has read it with the power of BEING A MASSIVE PRICK. Since that isn't the kind of super power we want, I'd suggest "Power Reading". Being able to read faster than anyone you know will pay off in dividends (provided you never tell anyone that you read an entire novel during your lunch break)...
"How to win friends and influence people"'s main point is to genuinely care about the people you interact with. Hard to see how that translates into "being a massive prick". I'm curious what led you to that conclusion about the book.