I'd buy property in places I want to ride (Squamish, Revelstoke, somewhere in Europe, etc) and host friends whenever they want to come out. Donate tons to different trail organizations and non-profits that promote cycling and make access easier to low-income and marginalized communities. Ride when/where I want. Maybe push the limits of N+1, but give so many bikes away. I don't think I'd invest in a team, or bike park or company. I want to ride bikes because it's fun and wouldn't want it to turn into work.