What if an input is required to prevent a crash and one pilot maliciously does nothing. I think there is a point in life when you just have to trust or the com

What if an input is required to prevent a crash and one pilot maliciously does nothing. I think there is a point in life when you just have to trust or the complexity and failure scenarios explodes. By the way I have a similar feeling about software supply chains. You can do a little but there is a point it becomes futile.