Here are some citations showing the exact opposite. Believe it or not, scientists are humans and have biases, are occasionally bad actors, and sometimes just need to get that grant.

http://publicationethics.org/news/cope-statement-inappropria...

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1182327/ - "Why Most Published Research Findings Are False"

http://www.thelancet.com/pdfs/journals/lancet/PIIS0140-6736%... - Editor in Chief of the Lancet talking about about upwards of half of biomed studies are faked or over-estimated