Did` Folk Capitalist' Musicians Make Big Money By Ripping Off Non-Commercially-Created Folk Songs in 1950s and 1960s?

Most African-American and white working-class people and rural folks, who either collectively built anti-corporate movements for radical democratic change and economic equality in the USA or collectively created most U.S. folk songs prior to the late 1950s, never made a lot of money from either their Movement work or their writing of non-commercially-motivated folk songs, which generally reflected the anti-capitalist sentiments and concerns of the Movement.

Yet some "folk capitalist" and commercially-oriented musicians in the late 1950s and early 1960s apparently made a lot of money from their involvement in the commodification of folk music by for-profit U.S. corporate music industry vinyl record production and distributions companies, like Capitol Records, etc. In his 2013 book, Folk Music USA: The Changing Voice of Protest, Ronald Lankford Jr. recalled what happened, for example, after the Kingston Trio recorded "Tom Dooley;" and their version of a traditional folk song about the hanging of a convicted murderer was aired by some radio station DJs in the USA:

"...`Tom Dooley' started generating thousands of dollars in royalties each week...[Kingston Trio members] Guard, Shane and Reynolds discovered that you could make $30,000 [equal to over $240,000 in 2018] a week from the royalties of one folk song...By December of 1959, the Kingston Trio had 4 albums on the Top Ten chart at the same time, giving the green light to major labels...: Folk music could be obscenely profitable...The commercial record labels...confused the public by promoting pop-folk as the real thing...

"...Popular folk performers made money faster than their accountants could find tax shelters to hide it in...The Kingston Trio...averaged between $8,000 and $12,000 [equal to over $65,000 to over $97,000 in 2018]  per show and another $6,000 [ equal to over $48,000 in 2018] per week in record sales, netting...$1.7 million in 1962 [equal to over $13.8 million in 2018] and accounting for 12 percent of Capitol's annual sales. The Limeliters tagged behind, making...$3,000 to $5,000 [equal to over $24,000 to over $40,000 in 2018] per week, though they tried to make up the income gap by singing...for Ford Motor Company and Folger's Coffee. Peter, Paul and Mary received $30,000 [equal to over $240,000 in 2018] after signing with Warner...By 1961, folk music...was...something you invested in like stocks and bonds...The Limeliters...turned `Things Go Better With Coke' into a...hit, and attempted to convince the public of the rich flavor of L and M cigarettes. The Kingston Trio...donned sailor suits and boarded a whaling yacht to sell 7-Up...Schlitz paid the Journeymen $25,000 [equal to over $206,000 in 2018] for a year's worth of jingles, while American Express...also engaged the group to cut an ad..."