The infection rates for Prince Alberts are nothing like the infection rates for navel piercings. Navel piercings have something like a 45% rate of infection, while Alberts have 21% rate of infection. So as long as Nom is a clean guy, he's probably safe.

Nipples are the most prone to infection, though, followed by navel, then ampallang, then labial.

EDIT: Good on you, Nom, for doing your homework. So many people just show up someplace and get holes stabbed in them without even knowing what they should look for in a shop.