User blog comment:The Milkman/Mass Effect in Retrospect/@comment-4721065-20130419132524/@comment-3228423-20130420035057

Cause Shepard's the kind of person that people will loyally follow to hell in order to complete an objective. Zaeed gets his jobs done, but he's just in it for the money and everyone of his teammates tend to die on him.

Well it's simple. If the Normandy sent a shuttle to check things out, the Oculi and the Collector cruiser would probably follow it back to the Normandy itself. And Shepard would likely want to save the crew as soon as possible unless they suffer the same fate as the colonists, unless he/she is a massive dick (I can say that right?) that doesn't give a crap about them.