Why kill someone if they are to make a profit from it?
In Gladiator there is a scene where Proximo is giving a speech about how he just bought all these slaves, so that he can profit from their death. But, in the very next scene we see someone killing another man which is obviously in Proximo's house compound. If he is trying to make money why kill someone in what looks to be like training?
I did not pay good money for your company.... I paid it to profit from your death.
The scene where the man is killed at 3:04,