That's a really terrible way to look at the world, and has caused a lot of suffering. It's the very basis of the term 'heretic' that has caused so much loss throughout human history.

No human ever has the right to deny knowledge to another for their own benefit, because humans are not able to accurately determine what knowledge is or is not harmful for others to hold. Often their choice to withhold knowledge causes the most harm of all.

EDIT: Thinking about it more, 'the right' is not correct. Withholding knowledge can be a malicious or competitive activity, but can never be a beneficial one. Ie, you have the right to withhold knowledge from your enemies to harm them, or withhold knowledge from competitors to increase your chances of winning. But you need to be clear on this with yourself: you're not withholding knowledge for anyone's benefit but your own.

If I knew that my natural behavior is disadvantageous (given that time preference is an advantage), I could behave more consciously and do more analysis than intuition. Rather than just killing everyone suspected to be more succesful than me, if you know what I’m saying.

Experiments require resources which are limited. And after the falsification of intelligence genes, it makes sense to find a psychological cause for delay of gratification first, and test other logical explanations second.

Edit: I was wrong. Reading Wikipedia article (https://en.wikipedia.org/wiki/Heritability_of_IQ), it seems intelligence is related to both genes and enviroment.