When Sophia awoke, she was first shocked. After, when she realized what happened, she thanked Dyon profusely, swearing to pay him back in any way she could.
Dyon only laughed and waved it off. He didn't save her for the credit. Plus, he got a valued experience out of saving her life. When he became a genius of runic vein theory in the future, she would definitely be among those he thanked in his mind.
As for the three disciples Arthurian injured, Dyon simply gave them pills. The valley was closing soon, so despite their injuries being less severe, he didn't have to time to heal them personally. It was a good thing none of them knew much about alchemy and pills, or else they would have been shocked by the level the pill reached.