Paper currency is easily manufactured, but the guy who makes it isn't guaranteed to win anymore than everybody else is guaranteed to lose.
Really? Perhaps in a perfect world where the government prints money and circulates it to small businesses via noble banks, you might be correct.
Except you probably wouldn't be. The government does whatever it can to maximise unofficial inflation at the expense of official inflation. This allows them to pay off their debts while so-called "inflation-indexed" social security obligations are reduced. It's a zero-sum game, where the rich stock-invested people gain at the benefit of the poorer fixed-income people, such as the elderly.
So, no, inflation doesn't "lose" value...it transfers it from the poor to the rich.
And that's still in the "perfect world" scenario of printing money. In reality, what's happening today is that the Federal Reserve is printing large sums of money, loaning it to banks at 0% interest, who turn around and buy Treasuries with a 3% risk, and pocket the profits from the difference. They're not investing in "businesses" - that would be (gasp!) risky! This is why Goldman Sachs just had three whole months without a single day of trading losses. So this money is explicitly going into investment bankers' bonuses, Warren Buffett's 10% yield bonds, and other Goldman investors. This isn't a conspiracy theory - it's in the press releases!
So, yes, those of us who see the value of the gold standard don't necessarily do so to reduce volatility - we do so to reduce the bias towards the transfer of wealth to the rich and the well-connected.