Having moral employees & leaders can come with many benefits; there can be offsetting costs associated with an internalized moral identity (reduced humor & subsequent likability in the workplace)

Yam, K. C., Barnes, C. M., Leavitt, K., Wei, W., Lau, J., & Uhlmann, E. L. (2019). Why so serious? A laboratory and field investigation of the link between morality and humor. Journal of Personality and Social Psychology, http://dx.doi.org/10.1037/pspi0000171

Abstract: Previous research has identified many positive outcomes resulting from a deeply held moral identity, while overlooking potential negative social consequences for the moral individual. Drawing from Benign Violation Theory, we explore the tension between moral identity and humor, and the downstream workplace consequence of such tension. Consistent with our hypotheses, compared with participants in the control condition, participants whose moral identities were situationally activated (Study 1a) or chronically accessible (Study 1b) were less likely to appreciate humor and generate jokes others found funny (Study 2), especially humor that involved benign moral violations. We also found that participants with a strong moral identity do not generally compensate for their lack of humor by telling more jokes that do not involve moral violations (Study 3). Additional field studies demonstrated that employees (Study 4) and leaders (Study 5) with strong moral identities and who display ethical leadership are perceived as less humorous by their coworkers and subordinates, and to the extent that this is the case are less liked in the workplace. Study 5 further demonstrated two competing mediating pathways—leaders with strong moral identities are perceived as less humorous but also as more trustworthy, with differentiated effects on interpersonal liking. Although having moral employees and leaders can come with many benefits, our research shows that there can be offsetting costs associated with an internalized moral identity: reduced humor and subsequent likability in the workplace.