Why should I buy bitcoin instead of Mercedes stocks?

The title says it all, I'm new. So far this is my point of view:

Mercedes:

1. Gives a job and feeds almost 150k families
2. Has beautiful and elegant cars and other products with incredible value to the society
3. If I buy the stock, I'm helping Mercedes go ahead, support that families and development of products, and it gives me 5$ dividend each year for every share I own

Bitcoin:

1. Some University papers that analysed the blockchain says that 99% of Bitcoin usage/transactions are for speculative trading, means everyone who buys Bitcoin is doing that just to hope to make some money
2. I don't understand what is the real benefit of Bitcoin to the society after 10+ years of existence, and I don't understand how someone is supposed to handle its own financials when banks have a lot of professionals who studied their entire life to do that for you
3. I'm not sure, but it seems that Crypto projects and hacks happen more frequently than banks going bankrupt
4. Sorry If I fon't find a positive point, I really like technology so I hope you will give me good motivations and change my mind