व्ययकर्मणि च भागी स्यात् न चांशं लभेत ॥ कZ_०२.०१.२३ ॥
vyaya-karmaṇi ca bhāgī syāt na cāṃśaṃ labheta
He shall share in the expenditure and labor, but he shall not receive a profit-share (from the returns).
To keep essential infrastructure oriented to public benefit and state regulation, preventing private capture of returns merely for participating in construction.