It appears that MSF is motivated by data showing that people in countries without adequate local health services do not recieve the care they need. MSF attempts to bridge the gap between needing healthcare and actually getting it by operating in those aforementioned environments.
MSF works in environments where there is not a lot of wealth or health-care avaliability. This forces them to implement solutions that are cost-effective and able to be distributed to massive amounts of people having similar problems. Operating in these conditions has allowed them to see that those in the lowest socioeconomic groups are the ones who typically need care the most.
MSF is focused on providing aid where aid is needed, thus the name "Doctors without Borders." They don't care what the policital or socioeconomic status is in a region, they'll provide aid no matter what. They're also able to provide their own funding rather than relying upon that of local governments.
MSF relies upon what ever technology and infrastructure they can afford to send to a certain area. Becuase they avoid using facilities that the host country has, they are able to establish their own infrastructure in an area. Additionally, certain areas may be greatly helped by some types of medical technology while others aren't. They rely upon doctors being able to make due in difficult environments as well.
This organization doesn't get involved with legislation in the regions in which they are operating. They instead focus on providing care to those affected by any number of disasters or calamities. This focus shows that they are more concerned about the immediate well-being of their patients than trying to influcence local governments to make policy changes.
They have produced a number of articles which can be found here: http://www.doctorswithoutborders.org/our-work/medical-research
A few of the recent highlights are articles that discuss the impacts of masss vaccination campaigns, how to care for victims of sexual violence, and what effect ready to use food can offer in a nutritional emergency.
Doctors without Borders is comprised of physicians and other healthcare professionals. They also have some support staff workers who take care of clerical things so that those in the field can have the best support and deliver the best care possible.
MSF uses previous sucesses with under their way of providing care to support their misson and future growth. MSF has been active in more than 60 countries providing aid where its needed most. Their continued success of delivering aid and further treatment provides enormouse support.
"We help people worldwide where the need is greatest, delivering emergency medical aid to people affected by conflict, epidemics, disasters, or exclusion from health care." From their website, they try to help people in medical emergencies where there isn't access to adequate healthcare.
MSF received private funding, so they aren't tied to a particular government or external organization's way of thinking or desire to seek medical care in one area.