"The police responded violently to prevent this."
"What's the problem?"
maybe that the police responded violently? and killed someone unnecessarily?
"It's sad that the factory owner needed to be part of the same social circle as the police to have the rule of law enforced, but that doesn't change the fact that the police were merely enforcing the rule of law."
If the rule of law allows for murder, then the rule of law is wrong and operating under it is no defence.
"If a gang leader was trespassing inside a bank vault, and the police beat him with a lathi, would you similarly object?"
yes? if the police have already caught him, what possible cause could they have for beating him unnecessarily?