Drover: We're not really used to...
Lady Sarah Ashley: A woman? I suppose you think I should be back in Darwin, at the church fete or a lady's whatever you call it. Well I will have you know, I am as capable as any man.
Drover: Guests. We're not used to guests is what I was about to say, but now that you mention it I happen to quite like the women of the outback.
Nullah: Mrs. Boss! We gotta get those fat cheeky bulls into that big bloody metal ship!
Lady Sarah Ashley: Let's go home.
Drover: There's no place like it.
Drover: Welcome to Australia!
Answer: So they'd be unable to water their cattle. Which has two benefits for Fletcher. The first being that they'd have to take their cattle to the watering hole on the border of their property, making it easier for Fletcher to steal the cows. Second, and more long term, their cattle would be of poorer quality due to lack of proper care. The ranch would lose money as a result, and they'd be more amenable to selling the ranch to their competition, whom Fletcher works for.
Phixius ★