That picture is ridiculous and completely misses the point. A link to a diagram with bright colours isn't automatically making a valid point.
For one thing, it has tax avoidance lumped in with tax evasion, and tax that is uncollected.
And it only talks about welfare overpayments and benefit fraud.
What about the generous benefits that are given out legally? How are they any different to tax that is avoided?
Answer - they aren't. They are both perfectly legitimate and legal under the policies we currently live by.
Tax evasion is illegal, as is benefit fraud. If you expect one to be dealt with harshly (as I do) then you should expect the same for the other. One is not morally superior to the other just because one is more likely to be committed by the rich and one isn't.