To get in on the ground floor means to become involved in something from its beginning, but in this sentence the speaker plans to become involved from the very end
Consider the statement "I love conspiracies and you're giving me a hundred thousand bucks to become involved in something from its very end plus it's dangerous.". Based on this "I live for conspiracies and you're giving me a hundred thousand bucks to get in on the ground floor plus it's dangerous." a true statement? Yes, no, or I don't know?