Most "most large open source engaged companies " want to leach off open source and do not want to create end user products that are open source. They focus on

Most "most large open source engaged companies " want to leach off open source and do not want to create end user products that are open source. They focus on open source development tools, and libraries. Not end-user software products. This is why they reject GPL because they want to be able to use the Tools and Libraries to package up a commercial software to sell to end users. They do not actually support the principles of Free Software, it is simply away for them to lower development costs and off shift capital expenses while getting some good PR about being "open source engaged"