The Amish live their religious beliefs. In America and most Western nations, individuals have freedom. Individual freedom means that any person has the opportunity to make major contributions to society. In societies that do not respect individual freedom and individual rights, people have very limited impact on their society. Their individual lives have little importance to the society as a whole.
Individuals are expendable.
We Americans value every individual American because any one of us might create an invention, start a company, aid the sick, solve a crime, inspire millions, cure a disease, serve their community, or even become President. There are no expendable Americans.