I'd argue that if the working definition of 'good' is 'someone who treats your fellow man humanely and in accordance with the holy bible' (Which was the moral standard of the time) then no, by the standards of the time, the captains of industry who exploited their workers and put their consumers in danger were not 'good'.
Well... I think "good" is a bullshit concept as so far as it describes personal traits. People may do good or evil things. But I don't think anybody is motivated by being good or evil. I think life was hard back then. Anything better than starving in the streets was considered "doing good". I recently read an interesting story about the London matchstick workers strike of 1888. The company was struggling with competition and reverted to using cheap white phosphorus instead of red phosphorus. This was dangerous to the health, but could be mitigated by taking some precautions. The problem was when the workers did away with the precautions to speed up the process and developed phossy jaw (a horrendous disease) and then hid it, so they wouldn't get fired, which only made everything worse until they dropped dead. They also used child labour.
https://en.wikipedia.org/wiki/London_matchgirls_strike_of_1888
Where's the evil in this? The factory owner couldn't compete with the much cheaper Swedish matches. Which were cheaper because Sweden in 1988 was among the poorest countries on the planet then. We were poor compared to countries like India.
It's just the market. These capitalists just did what they had to do to survive. Which they did. Now the brand is owned by Swedish Match. Oh, the irony.
The only solution was to ban white phosphorous. Which they did in 1908. Only then could the company stop using it without risking bankruptcy. I see it as neither good nor evil. It just is.