"Say you want to eliminate, just for example, slavery. You stand up in public and make speeches especially to, for example, the student body of the fictional William Willberforce University. You protest that you are going to do your best to reduce the number of slaves.
At the same time, you are working through international agencies to pressure anti-slave countries to expand slavery laws. You then decide that you will work to reduce the number of slaves by expanding slave owners rights.