If “Joe 6 packs” can afford a new pickup he can afford a new electric car. Whether or not the performance and cargo carrying capability of the EV would suit his needs is a another question.
With respect to Henry F and his high (for the era) wages coupled with low (for the era) prices allowing a “common man” to buy a car: Recall that that was an era where the price of automobiles was dropping with time while performance was improving. Much like it is today with consumer electronics. If you look at current trends, the price of electric vehicles is dropping and performance is improving while the price of gasoline vehicles has been rising. Even at present, forgetting any tax incentives, there are some studies indicating that an EV has a lower total cost of ownership.