Social and political are very different, unless you are overly concerned with accumulating power within your social relationships.
I would submit that all social relationships have power dynamics. Politics is about allocation of resources more than power accumulation. You may be conflating the two because more power allows you to allocate resources with less intereference.
of course they are. his original quote says 'political' but often translations or quotes may say 'social' (informally).
In the original its meaning is being part of a greater unit.