What time was that? Which centuries? Which popes?
OK, you win. I am not as educated on the Vatican as you.
If we are going for the holier than thou aspect, how about this:
This is circus stuff. This is stuff that was produced by someone, somewhere, to wow the crowds, and bring in the entrance fees.
If the church simply kept with tithing and simony they would have been powerful. But if you wave the relics of saints and Jesus himself...you can bring in the world power type of money.
So, thats my opinion. There is no miracle here, just rousing the rable.