If voting actually had any true effect, then the true leaders wouldn't allow us to vote.
Money is money, and every candidate that makes it into office will first and foremost do the bidding of those who can afford to pay big bucks, and not that of those who cannot afford that much money (majority of citizens).
It doesn't matter if Trump makes it into office, or if Hillary makes it, or if Sanders makes it, or if Rand makes it, or if Bush makes it: the resulting 4 years will be the exact same in the end.