Generally speaking, the wages of ordinary workers are low, and intermediary companies need to get corresponding commissions from enterprises. If the salary provided by the enterprise is low, the income of the intermediary company may not reach the expectation.
Intermediary companies may be more willing to participate in the recruitment of high-skilled talents or white-collar workers than to help enterprises recruit ordinary workers, because for intermediary companies, these people may have less benefits or benefits than recruiting high-skilled talents or white-collar workers.