Pati looks out to the window without caring about the prostrating Draco beside him, there's no merit in helping Draco that he can clearly see. At the very least he could just feel indebted to him, but emotions are not a strong guarantee.
It's going to come at a later time, and he wanted a direct benefit to gain right now.
Just like a business deal where trade is made between two parties without inflicting any emotion, Pati wanted that kind of thing if anyone were to ask for help from him. If the person wanted to get the benefit of the doubt, then they need to build trust with him.
Their relationship is only that of an acquaintance, Pati doesn't see him in any good light.
Despite prostrating on the ground for a moment, Draco can feel that Pati doesn't even pay attention to him but he doesn't care and kept prostrating. It's the least he could do as Dinda is the only hope he has in helping his comrades.
