It's been increasingly more and more important to build your link value, the trick is it needs to be authentic and thoughtfully planned over time. Many plastic and cosmetic surgeons don't have the time or resources to find quality link partners to link with.
A few things to think about when it comes to building your link value: first you must link with websites that share relevant content. For example it would be useless for a cosmetic surgeon to link to a car dealership unless he or she is bundling SUV's with nose jobs. However it would be ok to link with a cosmetic dentist or even a makeup artist as they are both working in similar verticles.
Building link value the right way can take time and effort but in the end it will certainly pay off.