Yeah I laughed at that, too. I like to think this is pre-ad-agency writing by the good, honest folks who actually made the thing. More likely it's an early effort at prestige marketing, though.
Maybe it's a little of both. The ad copy does sound like the company is committed to providing a quality product and sincerely regrets having to raise prices to maintain its high standards, while also strongly implying that a discerning clientele such as theirs will just accept it in stride even if they might bitch a little about it.
I didn't have much luck finding information about average individual annual incomes in 1916, but Babe Ruth made $3500 in his second full year in the major leagues (as a pitcher who won 18 games, led the AL in ERA, starts, and shutouts, and hit four home runs). At the top end of the MLB pay scale, veteran superstar Ty Cobb's salary was $20,000. That means it's a good bet that your typical ribbon clerks, icemen, elevator operators, and hotel house dicks didn't make anywhere close to that, so they could probably manage a decent, if drab, lower-middle class lifestyle but could only dream of owning a Marmon 34.