Ethics?

Will ethics and morality keep us from scientific advancement?

The prolem with ethics and moraliy is the fact that they are too stringent. Wouldn't life be a lot simpler without such unnecessary and unwanted blinders? In the study of Psychology, ethics is a major concern. How far can human experimentation proceed? Can the Fritzl family be studied for a "Nature v. Nurture" argument? Can the argument be, that considering they have already been through so much, there is no point in putting someone else through all that in order to study them and they should therefore be kept in a glass cage for a couple of years? Maybe they are used to it already. Maybe, their sacrifice will provide groundbreaking insight into the human mind. Is scientific advancement for the many superior to the rights and dignities of a few?