I don't think that's true.
When I started working, Amazon stock was at ~$750 a share. When I started working, Google stock was at about the same. Google would have granted 100-120K in stock, Amazon closer to 50K. Google gives annual refreshes of ~50K, while Amazon would not until the initial grant is mostly vested. So at the end of this year, when both vests would be coming to a close, a Googler who kept all their stock would have 160 shares from their initial grant, as well as 25-40 additional shares from their refresh grants.
So that's ~180K in AMZN at today's prices vs. 230K in GOOG, plus another 40-60K in refresh grants. And the Google employee has a better salary and bonus structure. Facebook is equivalent or superior to Google in pretty much every aspect of this comparison (base pay, bonus, equity grant, equity growth, equity refresh).