For Mayo, this started from a critique of the so-called ‘rabble hypothesis’ he attributed to economists and management theorists such as Taylor, in which individuals act solely according to rational self-interest. In contrast, ‘social man’ proceeds from the assumption that the major human need is for social solidarity that can be satisfied through group association. Naturally, this downplays the role of economic incentives. Such associations are seen to create social routines that substitute for logical and individual self-interest. Mayo preferred the term ‘non-logical’ to ‘irrational’, but the essential message is clear: workers act according to sentiments and emotions.