What is the truth about the handbills?

The handbills are misleading, they advertise work that might be available for maybe a few hundred workers to thousands of workers. This allows those hiring to underpay the workers because there are so many of them vying for jobs. I'ce placed the text below;

"Tom said, "Back home some fellas come through with han'bills—orange ones. Says they need lots a people out here to work the crops."

The young man laughed. "They say they's three hunderd thousan' us folks here, an' I bet ever' dam' fam'ly seen them han'bills."

"Yeah, but if they don' need folks, what'd they go to the trouble puttin' them things out for?"

"Use your head, why don'cha?"

"Yeah, but I wanta know."

"Look," the young man said. "S'pose you got a job a work, an' there's jus' one fella wants the job. You got to pay 'im what he asts. But s'pose they's a hunderd men." He put down his tool. His eyes hardened and his voice sharpened. "S'pose they's a hunderd men wants that job. S'pose them men got kids, an' them kids is hungry. S'pose a lousy dime'll buy a box a mush for them kids. S'pose a nickel'll buy at leas' somepin for them kids. An' you got a hunderd men. Jus' offer 'em a nickel—why, they'll kill each other fightin' for that nickel. Know what they was payin' las' job I had? Fifteen cents an hour. Ten hours for a dollar an' a half, an' ya can't stay on the place. Got to burn gasoline gettin' there." He was panting with anger, and his eyes blazed with hate. "That's why them han'bills was out. You can print a hell of a lot of han'bills with what ya save payin' fifteen cents an hour for fiel' work."