One of the most basic human needs is the feeling of security. It dictates how we act and the decisions we make every day. Without that feeling, we tend to regress into survival mode, leaving no time to accomplish what we truly want.
No longer do you have to practice medicine in a way that has an element of being driven by profits for yourself or for the system you work for. For some, that might mean taking care of those who most need it but may not be able to afford it. Some might do medical missions.