Final answer:
Sartre's existential philosophy values authenticity and self-responsibility, potentially suggesting he could see self-directed humor that affects one's authenticity as self-betrayal.
Step-by-step explanation:
The question pertains to Jean-Paul Sartre's views on humor. Sartre, known primarily as an existentialist philosopher, had complex views on the subject of humor. While not directly articulated in his philosophical texts as a stance on self-directed humor, his existentialist philosophy emphasizes authentic existence and taking responsibility for one's actions. Through this lens, it is plausible to interpret that Sartre might regard self-directed humor that undermines one's authenticity as a form of self-betrayal. However, to assert definitively whether Sartre thought that self-directed humor could betray oneself requires specific textual evidence from his works, which is not widely recognized or available.