After 100 years?, 25? 50? What if the scientist who made the invalid experiment were a very prominent one? -- Much as you would like to make the 'hard sciences' immune from the same sort of human foible that we all admit is very possible in 'soft sciences,' I don't think we can do so.
Consider for a moment the pharmaceutical companies and their 'researchers.' You know of anyone who might work for a paycheck there? Who might 'stuff' evidence that something wasn't as safe as Bayer said it was?
Oil and the environment, nuclear, medical doctors by droves. Fact is that most science begins with a conclusion in mind and then works toward that conclusion. Often ignoring or simply removing elements not useful to 'proving' what is proven.
Your faith in the numbers doing the work, while touching, is hardly reassuring if all those people are working for the same corporation. Or even a competing one.
I think what we lose track of is that the 'new' priests are sometimes the 'scientific community' and the 'scientific method.' 'Hard' sciences are as subject to human fallibility as is any other human enterprise. Your 'faith' doesn't seem different in kind from much of any other faith, Keira.
Science tends toward proving in many instances what it wishes to prove. As a chemist you may say, for instance that my Vioxx will cause a lot of damage and it may take 10 years for any meaningful discovery to occur that would show that. Simply because I will try, and succeed if my pharmaceutical is big and bad enough, to suppress that information and discredit you.
Purity of intention and result is contingent not on the 'pure researcher,' but on those that pay for the research. A major difficulty in any 'science.' People work for money. They are amenable to being influenced by desiring a paycheck. 3M, DuPont, Dow: need I go on?
To argue that 'hard science' is somehow purer is like an argument that the Pope for instance is a better 'holder' of the keys to the kingdom than the Patriarch of Constantinople or Alexandria.
In reality, most human endeavors are based on fallibility and a willingness to claim outlandish benefits from things that remain remarkably unproven. Much science remains a matter of human prejudice and desire. It is no more 'pure' than is the Love Canal.
Nichole