In a general sense yes. For example, if a man was unjustly denied a promotion and some random unqualified woman got the job instead (gender swapped version of t

In a general sense yes. For example, if a man was unjustly denied a promotion and some random unqualified woman got the job instead (gender swapped version of the article) they might have a case. In your friends case...I dunno. Seems like if they're being paid the same it's hard to argue discrimination.