Persoanlly I don't bother. Not because I don't care, but because I think it is usually unnecessary.

a) cold dry surfaces: anything blood bourned is dead after 2 weeks.
b) if I've restored a razor, I've spent lots of hours sanding and polishing the entire blade, followed by a complete edge reset on several stones. Nothing would survive that. But if there is a germ that would, mere consumer desinfectant would probably not hurt it either.
c) If there is some crud between the scales, I just clean off what I can. If the blade is clean, I shave with it. As long as I don't cut myself so bad that the pivot pin reaches my flesh, it won't matter.

The only time I will desinfect a razor is if it was very recently used by someone else, and I only have to hone it and shave with it withing 2 weeks of the other person having shaved with it.

Many of us shave with razors that are 200 years or more old. That razor has seen more than a century in which the plague(s), smallpox and all sorts of other horrible diseases went through Europe like wildfire.
I'm sure that we would have heard if someone actually caught anything from a razor. Being cold dry steel, germs don't have much chance.
but I would never shave with a razor that has a rusty blade. That is just asking for problems.

If you are worried about this, I advise you to spend time thinking about brush care instead.
In contrast with razors, brushes can cause all sorts of fungus or mould infections if they are not properly cared for. The reason for this is that they come into contact with skin and warm water. If they are not rinsed and dried properly, they can be a fertile breeding ground for all sorts of nasty environmental stuff.
I don't have a link handy, but a couple of months go, someone posted pics of a B&B member that shaved in the basement, and did not treat his brush properly... not pretty.

EDIT: I almost forgot, but welcome to SRP.