Even if you get a scratch it may inflame a little bit depending on where the cat's paw has been before. There could be fecal bacteria at the paw or the mouth if the cat has washed before - in general if your own immune system is ok it is absolutely not grave but for elderly or sick people this can be different.

BTW Human bites are very problematic for other humans!

There is even a disease that can arise by the bite of birds or scratches of cats. The symptom is that your lymph knots are swollen all over your body. It was diagnosed at me about 20 years ago. It stopped by itself after some weeks but in that time the docs had very interesting (and scaring) ideas about what I could have