You're complaining about ideology in the open source community, but you used some stereotypes yourself. Today it is companies that are the key contributors to the Linux kernel, Red Hat is being purchased by IBM for $34 billion dollars, and companies like Google, Facebook, Amazon and Microsoft seem to be in a race to see who can release the most open source code. Open source isn't the enemy of companies; open source is often the reason many startup companies can exist. Open source (e.g. Linux, Apache, Hadoop, PostgreSQL, etc.) enable them to be competitive with much larger companies right away without the formerly massive amount they would have had to spend on software or years it would have taken to develop software internally. Open source is inescapable in the corporate world today (well, maybe in Embarcadero). The two go hand in hand. Heck, even Microsoft is now a member of the Linux Foundation!
I also don't see the open source community as having grown more ideological. They don't need to; they've won. On the one hand you've got Microsoft open sourcing most of C#, running Linux on Azure and porting SQL Server to Linux; on the other side you've got employers requesting applicants' Github accounts on job applications.
Meanwhile, the FreePascal crowd has vowed never to accept a patch for type inference. It's generally the smaller the group or less successful the cause that tends to bring out fanaticism. "The fanatic is one whom, upon forgetting their purpose, redoubles their effort."