Stipulations:
- You cannot die and are immune to disease
- You cannot alter the future such that you change the world from your point of origin. i.e. You cannot become so famous that future people recognize you as immortal.
- If you vary the timeline too much you will cease to exist.


Absolutely correct.
Maybe immortality, infinite wealth, and a hundred year long life won’t corrupt THIS person?
Brb gotta go pray to the Easter bunny …
Living 81 years with the prospect of annihilation if one rocks the boat too much will change a man. Likewise honing the kind of duplicitous skills required to simply survive the attention of the world.
So, would my moral compass stay intact? If I don’t work at it, no - I’m under no illusion that it would. What I expect to happen is that I would continue to avoid the public eye. But once the shackles are off, there’s no telling where this goes.
Stepping out of this role for a bit, if I had that kind of wealth today, what would I invest in? Education and science. Press freedom. Rule of law. Anti-poverty programs (part of education). Probably others too, but those are the essentials.