I am thinking how there is a tariff on experience.

There have been times that Anna and I are asked to consultation meetings about the development of services. We are not paid anything for that. Or we have taken part in the training of new staff – which attracts a small fee. In the same NHS trust I have consulted to the mental health in-patient service, and for that – I was now a professional not a carer – I was paid ten times as well.
By a strange coincidence, I have become aware of two initiatives by the same multi-national pharmaceutical company. In onc case, their agents have approached our local Alzheimers Society, wanting to interview people with dementia. They would pay £35 each and £25 to the local group as an introduction fee. (An introduction fee seems odd to me, unethical even, but perhaps it is usual?)
Second, a private sector consultancy has approached me as a kind of expert witness, to help on a project for the same company, looking at the future of health care (not just dementia care of course). And for that I may also be paid ten times as well.
It is far better to be an expert by reputation than an expert by experience, it seems.