We are created not as gods but in the image of God. God is pure spirit consisting of intellect and will and it is as such that we are made in His image. Each of us is equal in the sight of God because we are all made in His image. 
Aquinas teaches that the brain is physical, a 'sensus communis' which co-ordinates information fed to it through the five senses. It is from here that our intellect is able to reason and our will is able to decide. As in our bodies we are manifestly not all equal the ability of the senses and the brain varies among us, thus some people are deemed 'cleverer' than others.
When our souls leave our bodies and are reunited with them perfected in the glory of heaven on the Last Day, we will all be equal in knowing God and enjoying the Beatific Vision.  St Paul tells us that there is no hierarchy amongst created beings in heaven, Galatians 3:28.
It is very sad that you wear the blinkers of scientism which precludes ratiocination.