Could we negotiate a one time payment, so I can get on with my life?

When I got divorced, my ex wife was pretty excited about making me spend the rest of my life paying for two lives. One for me, and one for her, in the form of alimony. Forever.
I knew her better than she knew herself, however, and I offered her a one time payment and that would end it.
She was dazzled by the zeroes (I knew she would be), and she took it.
She is gone, and I am free (broke, to be sure, but free.)
So, using that principle, I would like to investigate another type of “settlement”.
A portion of my annual tax bite is used to pay the bills of people who, for whatever reason, do not pay their own bills.
In other words, I pay twice.
Once for them.
Once for me.
My question is this;
Is there a single payment that I could make that would end this dependency relationship?
What amount of money could I pay (to the government, on everyone else’s behalf) in a lump sum, to settle up?
If it is reasonable, and if I have the money, I will do it.
How much would it take, in a single payment, to release me from my “social obligation”?