There are no two voters who can approve anything. Blocktrades has 30 million votes and the next tier has about 5-6 million, and there are only a few of those. At a minimum it would take 5-6 of the largest stakeholders to unanimously (or very nearly) agree on the spending, or failing that it takes a lot of the smaller ones to agree to support it.
I'd prefer if return were a little higher (5-10 million) though, meaning the top two tiers of stakeholders still couldn't approve something even if unanimous, but that's just my opinion. If we can't get more stakeeholders to set the spending hurdle high enough, that should inform us that most stakeholders don't want a hard cap (a small one at least) either.