Selling David In Goliath's World

It helps to write a good book filled with stories folks can relate to, but that doesn't mean anyone is going to buy it and read it. My sales guru says there's something like 4 million books published a year.  So the odds of a breakthrough by a novice are long indeed.
Still, we little person authors soldier on, believing we have something important to say to the world out there. In fact, I'm sure of it and so are 4 mil others.
My sales guru stunned me when she said that on Amazon, everyone's equal.  Well, not entirely, but more so than when competing for position on a Barnes and Noble display shelf or a New York Times Book Review (ha, ha). The truth is, get ready for it - Amazon reviews matter more to authors like me than the Gray Lady's reviews, whose cataracts would likely reduce Sometimes David Wins to a blurry insignificance anyway.  So go ahead buy my book, read it and review it on Amazon.  You'll be better for it and so will I. Yep, right here:  Sometimes David Wins: Organizing to Overcome Fated Outcomes: Pierson Jr Frank C: 9780879467067: Amazon.com: Books