You mean like the time where he healed those adventurers early on? Or the folks who had been injured in that remote town? Or the warriors in the elven town?
The previous couple chapters with the healers guild lady were all about the fact that he was taking away business from the "official" clinics. Also I believe it was in the earlier chapters that he was doing healing in the Adventurers Guild hall itself
it's been awhile since he's delt with regular people though and the warriors of the elven town's treatment is wrapped up the elf girl who is trying to marry him. I think that they should have shown more cases like the Adventurer's guild around now if they're going to bring up this conflict with the healer's guild. Given what he's been doing lately, it feels like she has a point since he's been just helping the harem lately. Him officially charging the same as a basic potion, which was supposed to be an insult to him, but then receiving other kinds of 'payments' rubs me the wrong way and I feel like I'm expected to ignore the reasoning of their actions and judge the mc and healer guild girl based only on if they are polite or rude.
idk, I said it before, but I recently read a novel that tried to blatantly gaslight the reader to believe the mc was good when he was a selfish pos. It makes me inclined to ignore how a character is presented and worry a little more about what they actually say and do. The healer girl may be pathetic now and rude before but the mc's situation doesn't really make a good counterargument to her point. I mean, she started by saying he was probably tricked to work for cheap and he sets his price according to what he was tricked into believing his value was by his asshole party...then when people feel the need to give him more, it's in the form of trying to marry him. Just paying him would have been more respectful to both of them, which would have put him in the same position as a regular healer's guild member if we go by her argument.