Disposable people are indispensable. Who else would fight the wars? Who would preach? Who would short derivatives? Who would go to court and argue both sides? Who would legislate? Who would sell red hots at the old ball game?
For too long disposable people have been misrepresented as destitute, homeless, unemployed, or at best precariously employed. True, the destitute, the homeless, the unemployed and the precarious are indeed treated as disposable but most disposable people pursue respectable professions, wear fashionable clothes, reside in nice houses, and keep up with the Jones.
Disposable people are defined by what they do not produce. They do not grow food. They do not build shelters. They do not make clothes. They also do not make the tractors used to grow food, the tools to build shelters or the equipment to make clothes.
Although disposable people do not produce necessities what they do is not unnecessary. It is simply that the services they provide are not spontaneously demanded as soon as one acquires a bit of additional income. One is unlikely, however, to engage the services or purchase the goods produced by disposable people unless one is in possession of disposable income. Disposable income is the basis of disposable people. Conversely, disposable people are the foundation of disposable income.