Heh... I, too, found it funny that he used pg as an example of what Patrick should be doing. There was probably a time when someone could have written similar article about how much more money pg could be making as a consultant rather than mucking about with online catalogs.
That's just one example. There have been plenty of years where pg sacrificed making big bucks in the short term in order to work on a bigger plan. In fact, I think 2010 has been one of them. Maybe it's been every year, except the year Yahoo! bought Viaweb. Perhaps that could thought of as sacrificing short-term money for time and attention, too. If they waited a year to sell Viaweb, maybe they could have sold it for even more.
Also, the mere mention of Grad School would make this article explode.