Directionally correct bars

I came across the above bar chart on my Twitter feed. It features 10 acquisitions considered "best of all time" by considering the purchase price and the "absolute dollar return" of the purchase.Simply said, these acquisitions were well worth the price tag.From the Trifecta Checkup's perspective, the Question of the chart is clear.Moving on to the Visual corner of the Trifecta, we immediately stumble upon a vexing problem. The bar heights are not scaled properly. The total height for Disney-Marvel is 13.3+4.2 = 17.5 while for Facebook-Instagram, it's 175.5 so the latter should be 10 times taller. The chart shows the latter to be not quite 9 times taller. For a moment, I thought the scale may relate to just the top (colored) part of the bars. Disney-ESPN is roughly twice the size of Disney-Marvel by this metric; and the relative heights of the red sections reflect that.But this observation fails for Marvel vs. Instagram. Instagram's 174.5 billion is roughly 13 times Marvel's 13.3…