The Islamic Sharia is a unique religious law, which does not contradict the reason, so why is there a need for Hudūd (legal prescribed punishments)?

The Hudūd have been prescribed to deter and punish whoever causes corruption deliberately. This is proven by the fact that they are not put in action in cases of unintentional killing or theft that is driven by hunger and dire need. Moreover, Hudūd are not implemented when it comes to minors or people with mental health issues. They are basically prescribed to protect the society, and their severity serves an interest that is ensured by religion for the society, which should be a cause of happiness for the society members. The existence of Hudūd is a mercy for people and a means for ensuring their security, thus, none would have an objection to such Hudūd except criminals, highway robbers, and corruptors out of fear for themselves. Some of these Hudūd already exist in man-made laws like the Hadd (legal prescribed punishment) of execution and others.