Take a look at these pictures of polio survivors. See the "rare" complications of surviving that disease? And who does pay for the treatment that those complications demand? Can you afford a lifetime of care for your child should they get paralysis from polio or brain damage from measles? How much cheaper (and safer) is a vaccine compared to that?
Nothing, even just stepping out your front door, is ever completely safe. We live in a dangerous world. Demanding that vaccines be 100 percent effective and 100 percent safe is an impossibility. That is why vaccine makers are shielded from liability through the National Vaccine Injury Compensation Program, so that those that do have adverse reactions can be compensated and those that make the vaccines don't face financial ruin.
Finally, every time I hear someone say "Follow the money" in regards to vaccination I feel compelled to point out that if all that motivated a corporation was profit, they would profit more selling sixty years worth of treatment and care for all those polio victims rather than just provide two simple shots.