I think the focus on morality is misguided somewhat. Or at least not important.
In "The three pillars of Zen", zen master Yasutani-roshu tackles this issue decisively. There is no problem with people just going after the goal of increased concentration, a state he describes as: "more than the ability to concentrate in the usual sense of the word. It is a dynamic power which, once mobilized, enables us even in the most sudden and unexpected situations to act instantly. Those who have developed 'it' are no longer slaves to their passions."
It does say that this "quality" recedes without practice, it's something you have to maintain by meditating every day, as opposed to the actual deep changes that come from seeking enlightenment.
But discussing which is better is, imo, a fool's errand.
In "The three pillars of Zen", zen master Yasutani-roshu tackles this issue decisively. There is no problem with people just going after the goal of increased concentration, a state he describes as: "more than the ability to concentrate in the usual sense of the word. It is a dynamic power which, once mobilized, enables us even in the most sudden and unexpected situations to act instantly. Those who have developed 'it' are no longer slaves to their passions."
It does say that this "quality" recedes without practice, it's something you have to maintain by meditating every day, as opposed to the actual deep changes that come from seeking enlightenment.
But discussing which is better is, imo, a fool's errand.