Baha'i Haircut Law: Why Create a Law if you're going to break it yourself?

According to Baha'i law, shaving one's head and allowing hair to grow longer than the lobe of the ear is forbidden:

"Shave not your heads; God hath adorned them with hair, and in this there are signs from the Lord of creation to those who reflect upon the requirements of nature. He, verily, is the God of strength and wisdom. Notwithstanding, it is not seemly to let the hair pass beyond the limit of the ears. Thus hath it been decreed by Him Who is the Lord of all worlds." (Baha'u'llah, The Kitab-i Aqdas)​

Of course the second law only applies to men (what happened to equality of men and women?!!):

"Shoghi Effendi has made clear that, unlike the prohibition on shaving the head, this law forbidding the growing of the hair beyond the lobe of the ear pertains only to men." (The Kitab-i Aqdas, notes)

However, Baha'u'llah, Abdu'l-Baha, and even Baha'u'llah's scribe (Mishkin Qalam) completely ignored this law:

What's the use of a law that the Prophet, His successor, and his closest companions aren't willing to implement themselves, then expect their followers to implement them?! If you can't abide by your own rules then why do expect others to do so?

Source : https://www.religiousforums.com/threads/bahai-haircut-law-why-create-a-law-if-your-going-to-break-it-youself.216112/