(Title in Polish - 'Materialne podstawy pozycji pracowników umyslowych w Polsce; od zacofanego kapitalizmu, niesprawnego socjalizmu do zaleznego kapitalizmu'). The article presents the history and the present situation of the salary discrepancies between white-collars, blue-collars and farmers in Poland. The first part of the article describes the huge disparities in period 1918-1939, when the level white-collar salaries were up to four times higher than those of workers. In the second part, the changes during the communist time are presented. The number of white-collar employees rose three times, but comparing to the period before the WW II, their living standard fell significantly. The last part of the text focuses on the contemporary situation of white-collar employees. The author, using the quantitative data discusses broadly the income disparities in present-day Poland. He states that only the living standard of the most earning decil of white-collar employees may be compared to Polish bourgeoisie. On the contrary, the salaries and the living standard of 80% of white-collar is comparable to those of blue workers. Thus this two social classes, stresses the author, should unite in defense against the bourgeoisie's exploitation of working class in Poland.