Statistical graphing, the do and don't of propaganda.
Actually, BOTH graphs could be exactly correct. If you notice, the bottom value of neither graph is listed. If the bottom line of the graph at left is 5000, and the bottom line of the graph at right is 0, then both are true. The graph at left is merely a snapshot of the top of the data, not the entire range.
Yes, it's a smarmy way to accentuate a difference, but it's perfectly allowed in statistics.