What Does SpaceX Actually Do?

According to Google its primary goals are to reduce the cost of space flight and enable the colonization of mars. It has 3 main divisions, Rocketry & Spacecraft, Starship Development and Satellite internet. Is this company really going f to be making money? Other than the internet is space flight and colonization mars REALLY something that is going to be useful and money generating within the next 100 years? I understand we can’t predict the future, but colonizing mars, really? Space flight? Like what is the purpose of any of that? What exactly are people going to get out of this company? Apple makes tech products that people want. McDonald’s makes food products that people want. What does SpaceX make or do that people actually want???