Objective scientists are a good thing, but are not - and should never be - considered an essencial component of the system. Any system that assumes honesty and fair play in its participants is doomed to failure. What science was aiming for is getting the true results from the aggregate - thus peer reviews, replication, etc.

Of course the more noise you have, the less efficient the system is, so it's good to incentivize people to do honest, objective work - thus pre-publishing / pre-registering, sharing data and algorithms, etc. are all good and important goals. But so should be changing the metric affecting the aggregate - like making sure scientists are actually incentivized to replicate previous work.