Salam Grace Seeker
Your post gives an impression that according to you, a Muslim can discipline his wife any time by physical force.
Read the verse of the Quran under discussion again
004.034 الرِّجَالُ قَوَّامُونَ عَلَى النِّسَاءِ بِمَا فَضَّلَ اللَّهُ بَعْضَهُمْ عَلَى بَعْضٍ وَبِمَا أَنْفَقُوا مِنْ أَمْوَالِهِمْ فَالصَّالِحَاتُ قَانِتَاتٌ حَافِظَاتٌ لِلْغَيْبِ بِمَا حَفِظَ اللَّهُ وَاللاتِي تَخَافُونَ نُشُوزَهُنَّ فَعِظُوهُنَّ وَاهْجُرُوهُنَّ فِي الْمَضَاجِعِ وَاضْرِبُوهُنَّ فَإِنْ أَطَعْنَكُمْ فَلا تَبْغُوا عَلَيْهِنَّ سَبِيلا إِنَّ اللَّهَ كَانَ عَلِيًّا كَبِيرًا
004.034 Men are the protectors and maintainers of women, because Allah has given the one more (strength) than the other, and because they support them from their means. Therefore the righteous women are devoutly obedient, and guard in (the husband's) absence what Allah would have them guard. As to those women on whose part ye fear disloyalty and ill-conduct, admonish them (first)
Note that applying physical force doesn't come immediately. First is admonishment. So I agree with you that you would have been out of line to use force to discipline your wife. First comes admonishment, you did exactly that.
(Next), refuse to share their beds,
Now this is the second step. God doesn't say if a person's wife requires discipline, he should beat her. He should first try to correct her verbally, then separate beds. Note that this act of separating beds won't take a couple of hours. This step will take a few days
(And last) beat them (lightly);
Now this is the final step. The first 2 steps will take a few days. Then you are allowed to use physical force on your wife. Suppose if a person's wife is on drugs. He should first admonish her. If that doesn't work then separate the beds. And if that doesn't work then he should use force. It will be for her own good. If she stops then as the Quran says
but if they return to obedience, seek not against them Means (of annoyance): For Allah is Most High, great (above you all).
Al-Qur'an, 004.034 (An-Nisa [Women])
Text Copied from DivineIslam's Qur'an Viewer software v2.910
As I explained, a Muslim cannot just hit his wife even if she does something really bad. He has to do these 3 steps as demonstrated by this very verse.
Peace