Why aren’t there more Open Source Health Care projects

There are open source projects at are focused around the health care industry such as Mirth Connect and OpenEMR. These are very mature products. I have played with both in fact I have implemented mirth at a company I once worked for and have recommended it in the company I’m currently working for as a replacement for SeeBeyond. For some reason there should me more competing projects. We need more EMR/EHR systems and more projects that can deal with HL7 and X12.
There are a lot of propriety products out there but I feel that the open source community can do much better and I feel can make the software do much more then the current leading proprietary products. I work with software that uses a lot of open source components but the software itself is proprietary but I the company I work for would just open source it. Most of the money made on he product is on support or on professional services. This is a product that makes total since to open source and let the community help develop it. Community help equals free development and free QA.
So why are there more open source projects based around health care? The health care industry doesn’t know why open source is. So many of them are suck in the stone age of paper or line feed files from mainframes. Most are vendor locked in and can’t change the way they do business.
How can this change? There needs to be a company the comes in and totally shakes up the industry like Red Hat and SUSE did to propriety Unix systems and Windows. This company should show the health care industry the value of free and open source software and why it should adapt to the open source philosophy.