I agree with the tech savvy part.
I think there are growing number of Cryptocurrencies/Blockchains with  different features that can serve the non tech savvy ones. It is important to make the Blockchains very simple and appealing to more people.

 Hopefully in the future everyone will find those that fits his/her career choice.

This is a simple question. If bitcoin is being used in a bad manner like in terrorism, money laundering or other crimes. Then it is unethical. If they are used in paying for products and services, they are considered ethical.

Bitcoin and blockchain technology was not developed to be unethical. Unethical things are stuffs that causes harm to people or society. On the other hand, Bitcoin is here to help the decentralization of the world.

When it comes to investments ethics are abandoned.

There is most certainly going to be wealth gaps created by bitcoin and crypto in general.
As far as investing goes if you have no money or limited funds your crypto holding will be
nominal compared to others who can afford to invest substantial amounts.

Nobody who is going to invest in crypto is going to consider if it is ethical or not, everyone
wants an ROI. It is just normal society and how people think in general.

If you try than you can claim anything as unethical. Take cash for example, terrorists and criminals use it to launder their money but do you hear about people calling cash unethical? No, cause everyone uses it and they wont call something they use unethical. Also since its controlled by governments so it is ethical to them.

Bitcoin is the only way that I can see right now to reverse the class of society. Millionaires were created, nerds got wealthy, while the late-adapting-middle-class were swallowed.

Therefore, yes it is ethical... as long as all parties voluntarily uses it, whether they win or lose.

I agree. It open doors to opportunities and besides there is no age limit here. The anonymity allows investment even at minor ages. I don't know if that is a bad thing but I guess majority of it isn't. The youth nowadays are open-minded, unlike those who are middle-aged, no offense meant. The millenials are explorers, they find ways to know how the new technology works and that is one good feature that the elders can never get from the youth. Even to stuffs as complex as cryptocurrencies, many young people are allowing themselves to be involved.

The downside i perceive to the subject matter is that bitcoin is quite attractive to illegal sellers,requires so much energy to earn and it could of course be outdated by another technology in the future who knows; other than that i believe the underlying technology on which it is built is superb and could change  a lot of things positively

Bitcoin is just a tool - a means to an end. It's a transfer of wealth, which is really just a transfer of work or energy. You can do moral or immoral things with it, but the crypto itself is neutral. The same thing can be said for money, or guns, or any tool that can be used for good or bad.

You can consider bitcoin to be a democratic currency that is based on the simple economic principles of supply and demand, the greater the demand of bitcoin the higher the value and the public has full autonomy so it is ethical and more than that it is fair in all means provided.