You seem to be implicitly conflating two different senses of the word "right". I don't think it was in any doubt that this kind of behavior can be to Apple's profit(+). What's in doubt is whether it is behavior which the rest of us should put up with; market dominance is not the end-all, be-all arbiter of desirable behavior, at least not to me.
(+: Some people will try to get rid of this kind of behavior purely by arguing that it in fact harms an employer's productivity (via burning out their employees). This may be tactically effective, but I think it frames the debate on the wrong terms, conceding too much of the argument at the start; it allows for just as much abuse as maximizes productivity. The reason to get rid of this kind of behavior is not fundamentally because of its impact on the employer's bottom-line, but because the people affected by it are human beings who deserve empathy and dignity regardless)
(+: Some people will try to get rid of this kind of behavior purely by arguing that it in fact harms an employer's productivity (via burning out their employees). This may be tactically effective, but I think it frames the debate on the wrong terms, conceding too much of the argument at the start; it allows for just as much abuse as maximizes productivity. The reason to get rid of this kind of behavior is not fundamentally because of its impact on the employer's bottom-line, but because the people affected by it are human beings who deserve empathy and dignity regardless)