Your situation is tragic and I'm saddened by the loss, but fatal infection is orthogonal to the subject of the article. MRSA infection is a procedural error not caused by the implant itself.
Infection always has and likely always will be a risk when you open up a human. Evaluating, understanding, and measuring those risks is the only way we can begin to mitigate them.
On the bright side, recent medical technology has also brought us a lot of minimally or non-invasive procedures. Those generally have much lower (sometimes almost zero) risks of infection.