PurposeThe current article integrates four prominent directions of modern research on workplace social courage. We (1) apply a novel framework, psychological contract theory, to identify (2) work engagement and moral disengagement as potential antecedents of social courage, (3) unethical pro-organizational behaviors as a possible duplicitous outcome of these antecedents and (4) moderating effects of moral disengagement on the relations of work engagement with these outcomes.Design/methodology/approachWe perform a two-wave survey study (n = 347), wherein antecedents are measured at Time 1 and outcomes are measured at Time 2 (one week later).FindingsWe support that work engagement and moral disengagement significantly relate to both workplace social courage and unethical pro-organizational behaviors. We also support that moral disengagement moderates the relation of work engagement with unethical pro-organizational behaviors but not workplace social courage.Practical implicationsWe highlight that work engagement can be a possible avenue to promote workplace social courage, but organizations should monitor any interventions because it may also promote unethical pro-organizational behaviors for those who are morally disengaged. We also contend that the current results support the “resiliency of courage” by discovering a nonsignificant moderating effect, providing further support for this broadly replicable aspect of workplace social courage.Originality/valueWe discuss how these findings support psychological contract theory as a viable lens to understand workplace social courage, and we call on future researchers to apply the theory to identify further relations of the construct.