I pass by two schools, right next to each other, during my commute to work. There are School Zone speed limit signs that also you your own speed in warning. I always slow down to at least 30 (zone limit is actually 25).
I usually stick to ~30 because I'm on a motorcycle and I have cars ride my ass, clearly pissed off at my slow speed. To my amazement, they then proceed to angrily pull into the school parking lot and drop off their own kids.
You don't even need bribery. You can just throw money at something and make things happen.
If you think something is true, you can pay the world to prioritize things as if it were true.
If you think vaccines cause autism and you are rich, you can create massive "education" campaigns and the like to convince people its true. You can buy ads telling people its true. You can amass an enormous following of people who believe you and change policy without bribery.