"economics" doesn't mean "money", it means the allocation of resources.
You're treating this whole idea as though there's a nefarious organization deliberately managing things (which there is in some cases, but the why is unacknowledged).
But a cell in your body has an energy economy that means it adopts certain strategies based on it's constraints.
Similarly, successful religions have an economy of beliefs that they have to adopt based on constraints. Almost all religions portray an afterlife, so all religions have a problem where they need to stop people short-cutting to get there - otherwise they promptly stop existing. But then they also have followers with limited resources so they also can't preach infinite life-extension since that undermines the afterlife narrative, and is economically unfeasible for followers (particularly since you also need to collect donations to your church to keep the organizational structure running).
A belief is economical if it exists today, and existing beliefs are economical. This tautological line of reasoning doesn't help explain the Catholic approach to anything.
What's tautological? How are the Branch Davidians doing? Heaven's Gate?
I note you keep insisting "they would change beliefs" but you've neglected to ever include what changes you think would obviously disprove this hypothesis.
You're treating this whole idea as though there's a nefarious organization deliberately managing things (which there is in some cases, but the why is unacknowledged).
But a cell in your body has an energy economy that means it adopts certain strategies based on it's constraints.
Similarly, successful religions have an economy of beliefs that they have to adopt based on constraints. Almost all religions portray an afterlife, so all religions have a problem where they need to stop people short-cutting to get there - otherwise they promptly stop existing. But then they also have followers with limited resources so they also can't preach infinite life-extension since that undermines the afterlife narrative, and is economically unfeasible for followers (particularly since you also need to collect donations to your church to keep the organizational structure running).