In many academic disciplines there are no real incentives for reproducible research. On the contrary, reproducibility helps your colleagues/competitors poke holes in your papers. It is quite perverse that being secretive and sneaky is better for career advancement that being open and honest. This is the underlying root of the problem.

Well, I believe that the biggest problem is that there are very little incentives in doing that. Everybody (your university, the Government, the funding agencies...) rushes you to publish as many papers as possible, get zillions of citations, and boost your h-index; however, they do not give a damn about the reproducibility of the results you are publishing.

If you are outcompeted by people with lower morals, then is it really up to you? You either have to succumb to taking shortcuts, or lose your funding.