ttpphd , "The really important part [of science] are causal analyses, and they practically always involve data collection. That's why sciences with strong experimental traditions fare a bit better - when you need to run a costly experiment yourself in order to publish a paper, this creates a strong incentive to think things through and do high-impact research."
https://news.ycombinator.com/item?id=40332833
Personal investment and motivation leads to high impact research. Subjectivity drives "objectivity".