This is essentially asking, if rabies is so terrible, why isn't everyone vaccinated? Yes, it's terrible, but in the USA and most developed countries it's so rare (as in just 23 cases nationwide from 2008-2017) that the trivial risks of the vaccine and the small number of people who will have an adverse reaction are generally greater than the benefit in the general population, which is almost nil. This isn't true for people who work with animals, but even with them it's quite rare to have an exposure.

Rabies vaccine and BCG are two of my rebuttals when I hear the allegation public health doesn't consider risks and benefits when selecting vaccines. You can add OPV to that list, too.