he gives every sign of sincerely believing it except for donating his salary (as he did when he was just a legislator)
certainly external financial interests are helping him a great deal, and there's been significant plundering historically, but it remains to be seen what happens with that. since perón, investing in non-portable assets in argentina has historically been a 'heads i win, tails you lose' deal with the government; your losses will be privatized, but your profits will be nationalized. so generally it's the argentine politicians doing the plundering, not barrick gold or the ypf investors