Her money is Clinton money.
And Clinton was all about lining her pockets with political patronage first, even above ideology. This explains the political opportunism, seen in both Kamala and Hillary. This explains the constant scandals, which plague both.
First, she was tough on crime when it was fashionable to be tough on crime, throwing more than a thousand petty marijuana-users in jail for the political applause, just as Hillary (and Biden) were in those plummy '90s. She's also someone who laps up the perks, sometimes inventing some and getting away with it. Kamala bullyragged the Los Angeles Police Department to serve as her personal Praetorian guard, quite illegally, in exchange for not cracking down on the LAPD for racist or whatever offenses. That has a whiff of Hillary — taking perks and becoming the entrenched establishment, no grassrooty stuff for her. And yes, Kamala, like Hillary, bombed at the grassroots level in Iowa. She's also, like Hillary, not above dirty tricks. Her curiously well timed legislation just ahead of the Jussie Smollett hoax in Chicago suggests that something was planned among the operatives. Later still, she was reportedly planting dirty stories about her rivals in the press (and like Hillary, the media were in her tree — remember the shopping excursion?) to persuade Biden to pick her. Again, very, very Hillary. There are quite a few other examples of this kind of opportunism and patronage perks which so characterize the Hillary wing of the party. Hillary of course, turned her State department position into a pay to play money-making operation for the Clinton Foundation, the donations of which dried up when she lost the 2016 election. What's vivid is that Joe Biden takes comfort in this patronage and scandal model, too, and Harris is the closest follower of it. Considering the wings of his Democratic Party that he has to choose from - the Bernie crazies, the supposedly close Obamatons who in reality held him in contempt, or the comfortable finger-to-the-wind patronage and corruption-focused, Hillary faction, just right for getting Hunter Biden his money-making gigs, it's a natural for Biden to chose Harris. After all, Biden has no accomplishments of any kind as a politician. Peter Schweizer has observed that Biden's political career has been intensely focused on enriching family members and Kamala's isn't all that different. While Harris is said to have that lean and hungry look as Biden slips into his dotage, it's also important that she will do and say anything to get the position she wants -- and if that means play-acting for awhile, well, she's good at play-acting, just ask Willie Brown. She'll fake it till she can make a killing. Biden understand this, and is comfortable with it. It's kind of a conventional, recognizable way of being a Democrat to him. Kamala with all her history of sucking up, is pretty much the same.