Good fundraisers organize teams of volunteers to help with fundraising. They teach people skills, and give them confidence that they actually can raise money. Organizers ask people for time - go to a meeting, plan a strategy, come to a demonstration. By combining fundraising and organizing, people are asked for time and money - as much of either or both as they can give. A much wider range of gifts and talents and abilities can be brought out in our constituents by adding fundraising strategies to the mix.
Many donors have little relationship to the organization except that they give money.
They don't have time to volunteer, or they are not part of the constituency. A fundraiser helps them continue to feel connected and useful, so that they will want to continue to give. Fundraising requires you to learn new things all the time, while perfecting a set of basic skills you already have. Although there are technical aspects to fundraising, it does not require years of education. Fundraising will allow you, perhaps even force you, to confront basic issues of class in yourself, in your organization and in the people you raise money for and from.