I definitely agree the application of knowledge is more problematic than the acquisition of it, but I think I would argue that we should question how and what knowledge we acquire, too. I think to a certain extent the scientist should be worried about their personal interest in a particular research or what will be done with it, but possibly before he starts researching? It's not that I have answers or anything, just that I'm basically not sure all scientific knowledge is worth having, considering the price we can have to pay for that knowledge (in terms of costs to gain that knowledge and also in terms of what will be done with that knowledge afterwards).