What is up with Hillary Clinton’s compulsive lining of her own pockets?

It turns out she has her campaign paying her $250,000 a year. It’s not illegal — but most would-be presidents aren’t so venal.

And she truly doesn’t need the cash: Her net worth is $11 million to $52 million.

She’s no longer the cash-poor Arkansas first lady who in 1978 turned a $10,000 investment in cattle futures into a fast $100,000. Nor even the “dead broke” Hillary of 2001.

Not that that lasted long: The same year, she scored $8 million for her autobiography “Living History.” Then Bill landed his own $15 million book deal — followed by (in CNN’s count) $150 million in speaking fees for the power couple these last 15 years.

Don’t protest that most of those fees went to charity: That charity is the Clinton Foundation — which the family controls, which employs their key staff between campaigns and which covers the cost of their private-jet trips and other extravagances.

Which brings us to why we call her “pathological”: She keeps taking the money even though she can’t conceivably need it — and it’s bound to look horrible.

As in those speeches to Goldman Sachs and other big banks that earned her nearly $2 million over the last four years. The ones that Bernie Sanders is now using to rake her over the coals.

What was she thinking? Why not just pass on the cash — or even skip the speeches altogether? Why does she still feel the need to draw a fat salary from her campaign?

Whatever mix of greed, entitlement and profound insecurity lies behind Hillary Clinton’s strange compulsion, it’s one more thing for the voters to think about.