I know there's the scripture that says God remembers that we are dust. But dust is NOT dirt. They have taken it totally out of context. Our being like dust to God means he knows we have weaknesses and imperfections. We are not strong and powerful like he is. We cannot do the things he can do. It's like the difference between an adult and a newborn infant.
We do NOT have to think of ourselves as something on the bottom of someone's shoe. God does not think of us that way. He loves and cherishes us despite our weaknesses and imperfections. Thinking of ourselves as precious in God's eyes is by no means prideful!