The instinct is still there. Of course it is. We can override it in a way other creatures probably can't, but expecting people to not be influenced by instinct and such is a non-starter.
The baseline for human behavior is set by expectations.
Some tens of thousand years ago we also had the instinct to savagely kill whoever lived in the nearby village.
My point was about the mutual influence between instincts and expected behaviours. But you seem to swap instincts for conscious interest. That would be another discussion, but I don't believe homo economicus ever walked on this planet.