The big influence here is Google, which has shown their dual nature.
When it creates "open source" technology it is usually for their own personal benefit like Chromium for their proprietary Chrome and WebM to avoid licensing H264 on YouTube. They still include a H264 decoder with Chrome, so they are paying either way.
When it affects their business, they will turn their back on their "open source" ideologies and take the role as yet another manipulative company like Microsoft. They want DRM in HTML5 so they can sell/rent Hollywood films on YouTube. They want users on a Chromebook to be able to watch Netflix easily without a technology they cannot control like Silverlight.
Google is good at not only portraying that image, but also wooing developers to work for them (like the Python language founder) to create proprietary software and personal data collection.
