Implicit in the picture is that the Hedonium Ball is at the verge of becoming critical (and turn into super-critical hedonium, at around 17 kgs, which leads to runaway re-coherence of the wavefunction reachable, i.e. all of our forward light-cone). The only reason why the ball hasn’t gone critical is because the friendly AI is currently preventing it from doing so. But the AI is at full capacity. If it had a bit more power the AI would completely annihilate the hedonium, since it is a threat to the Coherent Extrapolated Volition (CEV) of the particular human values that led to its creation. More so, the friendly AI would then go ahead and erase the memory of anyone who has ever thought of making hedonium, and change them slightly so that they belong to a society of other people who have been brainwashed to not know anything about philosophical hedonism. They would have deeply fulfilling lives, but would never know of the existence of hyper-valuable states of consciousness.
Only you can sort out this stale-mate. The ball and the AI are at such a delicate balance that just throwing a trolley at either will make the other win forever.