If the culture shifted such that people were skeptical of original results but excited about replication, replication would be the big news and people would want to do it. How to get there, I don't know.
Before that, cold fusion.
We still have the ion drive that doesn't require fuel. I don't think it has ever been successfully replicated, but I think that it also hasn't been successfully repudiated, either.
This kind of thing has been going on for a long time. I suspect that not all of it is deliberate fraud, but rather, people wanting their preconceived bias to be satisfied.
Both of them are useful as is.
Replicating a social experiment, when successful, don't give you anything new.
Physics solved this quite some time ago.
This is a constant tug of war..