Wapiński was an active member of the Polish United Workers' Party, which helped him to accomplish many of his organizational efforts.
[2] He led graduation theses e.g. of Donald Tusk, Arkadiusz Rybicki or Wiesław Walendziak.
[3] Donald Tusk wrote his thesis about formation of the legend of Józef Piłsudski in the interwar press.
In his scientific works, Wapiński focused mostly on the Second Polish Republic and the right-wing National Democracy political camp.
Historian Szymon Rudnicki pointed out that all contemporary works about National Democracy have their sources in Wapiński's book.