Of course, the cause is important. But in this case, it seems quite clear that the deplorable state of the plant would increase the risk to the point that any minor error would cause just about anything. No need for sabotage there.

Wikipedia, unfortunately, can't be trusted. There are companies tasked with bending the truth and inventing doubt about anything negative for any big corporations.

And if you buy a company, you own everything, including the nasty parts of its history. I might believe that nobody from the new corporation was directly responsible for bhopal. But they knew what they were buying.