Cardano is an old coin that hasn't done anything serious since its creation. It has strong patrons behind it, roughly like Ripple. If you want to make life better for the people who are developing Cardano, you can invest in this project. But I am not sure that you will get good profits, because the coin has made huge growth in the past, and now it is time for it to be trashed, as it has been repeatedly with similar projects such as eos or xem.