No. Actually it's broader than that. Many of them are professional fundraisers, but there are also professional advisers, accountants, lawyers, and others who are interested in fundraising.
Many people in the charities sector are not only involved with one thing like running a charity or fundraising or doing charitable activities, but they also do a mix of things.
We just had a conference in Toronto with 1,000 people for three days, and it was a mix of different people who are working in charities. Many people, fortunately or unfortunately, have to deal with fundraising, whether they like it or not.