Of course the best overall statement I ever heard from a successful person comes from Notch, who, when asked what advice he would give to someone who wanted to become as successful as him, replied: first of all, don't listen to advice. The deeper wisdom behind this that really hit a chord with me is there is no big secret which successful people can hand down to others so they may reliably replicate that success.
You might learn something, or even a lot, about procedures and attitudes that were essential, but at a fundamental level I don't think a successful person can meaningfully grasp all the factors that were instrumental to their story. A lot of what they think is essential may in fact be superstition, as they lack enough data points.
I found it's still valuable information, but as with anything, you have to weigh it critically. All things being equal, I'd put a lot more weight on advice coming from VCs or people running incubators as compared to the observations of super successful billionaire founders, simply because they have access to more data.
So, for any of the lectures, if not all the content seems earth shaking, Nobel prize level stuff, then just accept the good news: It's possible to be one of the most successful at the level of content often in the lectures! Comforting!