I like to wipe my hands on my cat
That's so strange, Why do you need to do that to your cat?
I feel like I have the right to do so.
Wiping your hands on your cat is wrong as it causes your cat to be dirty and your cat will eventually lick its fur and ingest whatever is on it. This could make your cat sick. Instead of wiping your hands on your cat, you should use a towel or napkin as it is much more hygienic.
I guess you are right. For all I know, she could have been Feline Immunodeficiency Virus-positive.
It's good you are starting to consider her health because she can't know what's good for her or not. It would be best to just have a hand towel to wipe off. How about taking her to the vet to make sure she doesn't have FIV?