Having lived among the Tlingit people of Southeast Alaska, I can tell you the position on the Totem Pole is not related to social station.
From Oscar Newman (2004).
Secret Stories in the Art of the Northwest Indian:
"Those from cultures that do not carve totem poles often assume that the linear representation of the figures places the most importance on the highest figure, an idea that became pervasive in the dominant culture after it entered into mainstream parlance by the 1930s with the phrase "low man on the totem pole" (and as the title of a bestselling 1941 humor book by
H. Allen Smith). However, Native sources either reject the linear component altogether, or reverse the hierarchy, with the most important representations on the bottom, bearing the weight of all the other figures, or
at eye level with the viewer to heighten their significance. Many poles have no vertical arrangement at all, consisting of a lone figure atop an undecorated column."