BEIRUT, Lebanon, Aug. 15 — As stunned Lebanese returned Tuesday over broken roads to shattered apartments in the south, it increasingly seemed that the beneficiary of the destruction was most likely to be Hezbollah.

A major reason — in addition to its hard-won reputation as the only Arab force that fought Israel to a standstill — is that it is already dominating the efforts to rebuild with a torrent of money from oil-rich Iran.

In his victory speech on Monday night, Hezbollah’s leader, Sheik Hassan Nasrallah, offered money for “decent and suitable furniture” and a year’s rent on a house to any Lebanese who lost his home in the month-long war.

“Completing the victory,” he said, “can come with reconstruction.”