Bob is telling Alice that life isn't fair. Bob is Alice's friend; he is not the boss. Bob seems like he has Alice's interests in mind, since it is unlikely that Alice "doing something about it" would be worth it (such as confronting the boss, suing the company, picketing on the street outside the building, etc...). She is probably better off just continuing her job search. This is independent of whether or not Alice's decision is best for society as a whole.