[Secret Agent Man]

Easy.

The university and he wanted government grants.

Government wanted his research to confirm or reject whatever things they wanted it to say.

He conducted his studies to give the government the results their grants paid for.

[DUMBGRUNT]

To be more competitive for grants, scientists have to publish their research in respected scientific journals. For their work to be accepted by these journals, they need positive (i.e., statistically significant) results.

Also, see #8 0bama had his very own Lysenko.