What's the difference between hireling and tireling?

Hireling

Definition:

(n.) One who is hired, or who serves for wages; esp., one whose motive and interest in serving another are wholly gainful; a mercenary.
(a.) Serving for hire or wages; venal; mercenary.

Example Sentences:

(1) Kurt Stammberger, senior vice president at the firm, suggests Iran’s digital hirelings have used external hosting firms as they “don’t necessarily have access to [the technology] inside of the country to launch attacks”.
(2) American invaders have embedded with their hirelings in most parts of the country, for which the Mujahideen have launched counter measures as many infiltrators are awaiting their chance to carry out such an attack behind enemy lines,” a Taliban statement said , according to the Site intelligence group.
(3) Yet The Times has portrayed me and my colleagues as hirelings of big tobacco,” he said.
(4) March against Orbán in Budapest or Trump in Washington, DC, and you are a hireling of Soros’s cosmopolitan conspiracy.
(5) He impersonated what I took him to be – writer, walker, culturally burdened European – so beautifully that I wondered if this was an actor, a hireling.