Yes, driving down the unit cost increases scale and makes things more affordable. That's standard commodity capitalism. Paying your workers more, well what percent of the economy did Henry Ford control? Was it enough to substantially influence mass adoption? In any case, that's coming right out of his own pocket, so he'd have to hope that it's a marketing strategy for... other capitalists? The rest of the population? Otherwise he's just subsidizing cars and eating the costs.
Raising the wages directly for labor-related issues makes more sense.
You have to remember that rich people like Henry Ford and their estate/descendants (e.g. the Ford Foundation) like to manufacture an image for themselves. It's a nice story if instead of spreading anti-Jewish conspiracy theories, Henry Ford was a great friend to the workers with a nonsensical business concept.
"Indeed, as a vocal antisemite, he used his status as one of America's most well-known and trusted business leaders to systematically spread conspiracy theories about Jews. His screeds against Jewish people became so well-known at home and abroad that he is the only American whom Adolf Hitler compliments by name in Mein Kampf.
...
But while it dramatically reduced manufacturing time—from 12.5 hours to 93 minutes per car, allowing mass production of up to 10,000 Model T cars a day by 1925—it also made his workers’ jobs more monotonous and unsatisfying. The turnover rate at Ford’s Highland Park, Michigan factory soared to 370 percent.
To solve the problem, Ford realized it would be cheaper to raise wages (which at the time were competitive with those at other auto companies) than to continue hiring and training new people at the same pace. So on January 5, 1914, he announced that his company would double wages to $5 a day. The move proved seismic: By prompting wage hikes across the car industry, historians say, it gave American factory workers a crucial boost into the middle class, allowing many to afford their own Model Ts.
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While $5 a day was a generous factory wage at the time, it came with a substantial catch. Technically, workers’ pay remained less than or near $2.50 a day, and the extra money was a bonus they had to earn. The year Ford introduced the bonus, he established a company Sociological Department that sent inspectors to the homes of his employees—at this point, mostly male immigrants—to make sure they were living in a way Ford approved of. Workers were denied the full $5 a day if their wives worked outside the home, if their homes were unclean, if they displayed signs of drinking or gambling, if they took in boarders or if they didn’t contribute to a savings account.
"
https://www.history.com/news/henry-ford-antisemitism-worker-...
Worth noting that American companies did stuff like this in South America too. The population generally doesn't want to work on the terms of the corporation, so they "terraform" the place until they have a compliant population. Shredding extended family ties, religions, etc. Anything that would interfere with the relationship between a man and his boss.