Is it contaminating the spice to touch it after touching raw meat?
The bowl (and the salt/pepper) is contaminated if you touch it after touching raw chicken or any other unsafe food.

In fact, this is precisely why cooks and TV chefs mix it up in a little bowl first. They don't want to contaminate the entire container or even a perfectly good salt/pepper shaker.

They don't reuse the bowl afterward, they throw out any leftovers and toss the dish in the dishwasher. It's a convenient and safe way to season raw meat.