Thank you for the opportunity to help you with your question!
I agree with your mainpoints which are more concerned about the cinematic effects used in the film and the lesson about taking up a job carelessly. Since the movie won with an Oscar Academy award, we can give more value to the artistic effects that the film entails. However, these effects are only subsequent to the main theme that the film tries to deliver, which is to paint a picture of slavery which was altogether inhumane and to remind the public of equality and the value that we preserve with riddance of racism. The very fact that the film involves some violent scene that may be disturbing serves to the purpose of creating an emotional reaction in the audience and promotes negativity towards ill treatment and violence to people, based on discrimination.
12 Years a Slave, therefore, is great not mainly because of the beautifully crafted cinematic effects, but because of the message that it is trying to deliver. The life story of Solomon delivered though the story also raises awareness to the fact that discrimination and slavery are the issue that are still prevalent in the world even today. Through the fact that slavery was being employed at the point of time of the story even though it was illegal in certain parts of the country, the movie gives slavery, specifically, and discrimination, in general, a very hideous sense. 12 years a Slave, thus, demoralizes the use of humans as property and working machines for the acquiring private profit, a practice which are still prevalent today in capital cultures.Please let me know if you need any clarification. I'm always happy to answer your questions.
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