The goal was to demonstrate the power of "free labor", which allowed a common farm boy to work his way to the top by his own efforts.
ðə ɡˈoʊl wʌz tə dˈɛmənstɹˌeɪt ðə pˈaʊɚɹ ʌv "fɹˈiː lˈeɪbɚ", wˌɪtʃ ɐlˈaʊd ɐ kˈɑːmən fˈɑːɹm bˈɔɪ tə wˈɜːk hɪz wˈeɪ tə ðə tˈɑːp baɪ hɪz ˈoʊn ˈɛfɚts.