Obvious Corp Takes Over

Odeo has been acquired by a new company called Obvious Corp. Evan Williams writes:
Obvious Corp was started by myself, with help from long-time collaborator, Biz Stone, and other Odeo people. Obvious has purchased all the assets of Odeo, Inc.--including odeo.com and twitter.com from the investors and other shareholders and will continue to run these services. Obvious is fully funded by me and, eventually, will create other things, as well.
It is interesting to see this move from Evan Williams, poster boy for Internet success (and recently overfunded). Williams continued:
As services mature, the goal is to get them to profitability with advertising and/or subscriptions, so they can add to the network (and fund more building). When justified by growth, resource needs, and desire of the team, we will spin off growing properties to form their own entities (with outside investment).
I do applaud him for making mistakes and learning from them. There can be nothing more difficult in life than making mistakes as a public figure and taking your lumps. The first thing they taught me in business school was to make money. So I am curious: why does Silicon Valley seem to perpetuate the idea that profit isn't as important as [insert noun]?