> "When you rely on incentives, you undermine virtues. Then when you discover that you actually need people who want to do the right thing, those people don't exist." —Barry Schwartz
I'd say you need to reinforce psychological traits in the work environment, like following your curiosity for the sake of it (watch others do it), or feeling guilty about publishing something that you know may mislead the readers (watch your supervisors correct such failures, instead of teaching you how to trick your paper into a high-impact journal). De-emphasize gate-keepers, the quantitative measurements (like citation count), financial pressure to perform. All of those will be gamed if they are too important.
Then build a reputation (as an institution) to work that way, I guess. This will give publications from that institution a higher credibility (long-term). The cost of being mislead by the claims of every paper you read is simply too high.