It is still not clear what you mean, what does 'deflected negative' mean? Deflected down? That would not be right at all. I assume it means 'upfloat'? The reasons for that are well documented. Your first post was full of innuendo that Boeing had made some design error with wing and aileron design. Anyone famliar with later 737s, 747s and 777s will be familiar with the new wing design preference and the reasons for wing bending. Inflight, the 737 wingtips are looking at each other over the top of the fuselage. A simple question would have extracted an answer for you instead of 2 paragraphs devoted to a possible Boeing design disaster area, which is utter nonsense.
A magnificent looking plane with real technical innovation. It will make a fitting partner to the A380 for the heavy stuff for the next generation.