The answer is simple: the personal qualities of present-day professors are such that we may find among them even exceptionally stupid people like Tugan. But the social status of professors in bourgeois society is such that only those are allowed to hold such posts who sell science to serve the interests of capital, and agree to utter the most fatuous nonsense, the most unscrupulous drivel and twaddle against the socialists. The bourgeoisie will forgive the professors all this as long as they go on “abolishing” socialism.