Connections to people

In a thought experiment, I have some new thoughts of how to categorize people in term of how I want to connect with them. So if there is one day, we developed a spacecraft that can take us to fly into the core of the universe that hides the ultimate truth of it, and I was the human in charge of this program,  and I had decided that I would take the flight even though the spacecraft will not have enough ability to fly back to the Earth. I can invite as many people as I want to the spacecraft, and I don't have to think about how this flight would benefit human beings in this thought experience. I can choose people merely based on my own preference. People I invite should not need to worry about coming back to the Earth in this thought experiment. I then thought I could basically categorize people (including many strangers) into five groups:

1. Those whom I want to change the world to a better place for: almost all creatures on Earth ? But mainly creatures in disadvantage. I want them to be able to access resources to do what they are passionate about and love others who they care (but the code is those passions and love should not hurt others mentally or physically). I do not necessarily want to invite them to the spacecraft. 
2. Those that I want to work with for making the world a better place (technological innovations is a crucial step for greater human enlightenment).
3. Those whom I want to spend my last month on the Earth with and persuade them to let me take the fly: families (I include close friends in families). I know how uneasy the trip would be and the danger of unknown, so I would never let them come to the risks with me. I hope that they can live happily on Earth. I also think that my families do not really care about the truth of the universe as much as I care; I don't want them to come the trip and depart from their love and passions just for me. 
4. Those whom I want to invite to fly with me
5. Those who are the only people that could stop me from flying out just by their physical existence on Earth because I see the universe through them already: (this should be more profound than the language i am describing it now)