YouTube, AdSense, and DoubleClick? Wow. All those are Google's money-making products. Both YouTube and AdSense helped countless content creators across the globe. Not everyone goes to CS school or other graduate programmes for various reasons. These content creators make a good living too, I guess (at least top 5-10% content creators makes good living, but I don't any data to backup). So in a way, if you make money from YouTube or AdSense, then Susan played a big role for sure. Also, regardless of what HN think of Google Ads and Google's privacy policies, it fundamentally helped some those content creators, including support and development for other free Google products such as Gmail, Maps, Search and others stuff etc.