I don't think I disagree as such , it's rather a different point of vkew. You have visibility in the case of SIL and you don't in the case of private corporates. I fully agree with whatever you said in the IPO days but same pitch is where I find a problem given where it is now.
As a corporate, you want to retain the dentists to keep the book filled. Too risky and what they are willing to offer upfront would be a lot less otherwise given the high risk in the SIL model.