IRA influence on The Molly Maguires
Although not addressed in the film, I couldn't help but think the reason why The Molly Maguires resorted to terrorism during their labor disputes was because of their Irish heritage and the history of IRA violence.
I felt the most sympathy for their plight when Richard Harris is at the paymaster to receive his first weeks wages. He has extracted 33, 1-ton loads of coal at 30 cents a ton for a total of $9.90. After deductions for his lantern, pick, drill bits and gunpowder used in the extraction he has 24 cents left. Marvelously acted, the look on his face goes from utter joy to defiant disbelief. The veteran miner behind him fares a little better delivering $19 worth of coal and taking home $9 after mining and company store expenses.
That business practice is still common today, and I don't really think its patently unfair, unless the uniform or equipment must be bought from a company store and is overpriced, which is exactly what the mining company was doing in the movie.
I find it hard to believe this film had a budget of $11 million when Patton, released the same year, and having a much greater scope cost just $12 million to make.