Alex wanted the plot to continue but not unadministered.
He wanted to be there to observe anything and everything, as he wanted to interfere the moment he thought that Lokiath was going to get an advantage.
So, he arrived at the moment he knew that the real thing was happening.
He then told the guys to continue what they were doing, but it looked like they took it in a bad way.
Alex didn't want that.
He wanted the plot to continue; if he were to stop the plot right now, then Lokiath would have something else happen to him later, and that something would give him more profit than what he was supposed to gain.
Then the problem was that Alex wouldn't be there to turn his fortune into misfortune.
[If you stall the plot, it would just profit the protagonist, as the plotted profit he was supposed to gain would get added to the next one.
If you were to foil the plot, however, then things would change.]
