Why Is My Majestic Demon King Always Being Chased by the Righteous Way?

I was reborn as the most ferocious demon king in history, but I was bound to the "Light of the Righteous Path" system. The system said: "Did you help the old lady cross the street today?" I held the three-meter-long Demon King's Blade and stared at the shivering old lady opposite: "I helped, but... The road was cracked." The next day the system asked: "Did you help the lost child get home?" I stood in front of the ruins with the crying child on my shoulders: "He showed the way, I drove the mountain... But his house collapsed." On the third day, I decided to be a good person and took the initiative to help the brave man fight the evil dragon. The brave man knelt down and cried bitterly: "Please don't help! The dragon was frightened by you and exploded. My dragon-slaying feats have been ruined!" The system suddenly popped up a warning: "It has been detected that the host is trying too hard... About to start the ultimate good guy mission?" I was confused: How can I be a good person and have a hidden plot? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.