I chuckle every time I hear this. How much profit of the web server market does Microsoft take with IIS vs. the free alternatives like Apache and Nginx?
Who wins in the Server OS market of Windows Server vs. Linux/BSD? Who dominates the web dev tools market of Visual Studio vs. Eclipse/etc. ?
The same arguments you make can be made against the above too.
The idea of profit share as the metric was hyped up by the Apple fan blog network of Gruber-Siegler-Asymco etc. First, when Android had lower market share, they made numerous claims and 'analysis' that said Android could never overtake iPhone. When that did happen, for some time, they added the iPad to the mix by making it iOS vs. Android instead of just the mobile market and declared Apple the winner. And then later came up with the profitshare argument. Looks like the only metric that matters is what makes Apple the winner.
One example of a bizarre comparison(sneering and snarky as usual) http://daringfireball.net/linked/2012/07/27/amzn
Since when did profit become the one and true metric?
I realize that they're writing what their audience wants to read, my only peeve is how much airtime their posts and arguments are given on HN. Meanwhile Paul Thurrott's Winsupersite is hellbanned on HN just for being a Microsoft watcher site. Draw your own conclusions.