Although Doctorow shows Ford dehumanizing his workers, he still seems to have some sort of respect for Ford as he also emphasizes Ford's genius in creating the assembly line. He shows Ford being an eccentric character who was a pioneer truly invested in his work as can be seen when the first car rolled off the assembly line. You can see that he was truly excited as he allotted a whole 60 seconds to appreciate the moment. We can also see that Doctorow likes Ford more than JP Morgan when Doctorow starts giving us his version of Morgan's background.
Doctorow describes Morgan as top of the business ladder and how he was born rich and used his wealth to get richer. This is unlike Ford who Doctorow depicts as a person who started small and was able to work hard to amass their fortune. Doctorow is showing the two different types of capitalism that is represented by these two tycoons. In Morgan you have the old capitalist who was successful through using his ancestor's assets and Ford, the new capitalist who used innovation, hard work, and young perspective to succeed in society.
This comparison with Morgan shows that although Doctorow is against the exploitation of workers in Ford's assembly line, he is more supportive of Ford's rise to success than how Morgan rose. Doctorow appreciates this new type of capitalism than emphasizes innovation and also believes that everyone is able to participate in this new type of capitalism and not just the very rich.