For Theodore Adorno, advertising creates false needs. Adorno (1903-69) argued that capitalism fed people with the products of a 'culture industry' - the opposite of 'true' art - to keep them passively satisfied and politically apathetic.
Adorno suggested that culture industries churn out a debased mass of unsophisticated, sentimental products which have replaced the more 'difficult' and critical art forms which might lead people to actually question social life.
False needs are cultivated in people by the culture industries. These are needs which can be both created and satisfied by the capitalist system, and which replace people's 'true' needs - freedom, full expression of human potential and creativity, genuine creative happiness.
Products of the culture industry may be emotional or apparently moving, but Adorno sees this as cathartic - we might seek some comfort in a sad film or song, have a bit of a cry, and then feel restored again.