Yes we can't have them live poorly, they must be either paid fairly or denied any money so as to leave. In other news Gig Workers create jobs for underprivileged and unemployed immigrants.
As a software developer, I know I am highly prized in the current market - but this might change, and the people who are treating drivers and couriers as disposable cogs would do the same to me given half the chance. Fighting for worker's rights is self-preservation as much as it is a question of ethics.