I think it's pretty simple.
The right wing has a higher concentration of "selfish" ideology and attitudes, from the more extreme end of Ayn Rand-like narcissistic greed right through to the basic capitalist idea of self-improvement by amassing wealth. The idea of constantly hustling and getting away with whatever you can is inevitably sometimes going to slip over the boundary into immorality and illegality. Once you place such people in power of entities like companies and charities, with the relative lack of oversight that ownership/control results in, temptation and opportunism are even more likely to result.
I dunno if it's a right wing thing exclusively.
I mean there's 2 different BLM organisations.
1 Has huge amounts of cash but doesn't spend it on much other than advocacy.
The other is the one that was doing the bail stuff and got Millions and pend about $20,000 in total of it and hasn't been hear from since really.
On top of that there were fundraising things like:
Rebel Jam - collection donations, was claimed to still be coming in 2015 and never emerged and was quietly abandoned.
The Feminist deck project - raised money to make a feminist icons deck of playing cards. It's not been delivered and the person behind it was found to be running a youtube channel reviewing different strains of weed.
Tingler / The Chuck Tingle Video game - $85,000 raised and in 10 days time it will have been 2 full years radio silence from the person who started it.
Hell consider this. Anita Sarkeesian has somehow spent over $1 Million at this point:
She gets to use youtube's creator studio facility for free.
She gets to borrow their equipment and use it for free (something almost no other creators got)
She charges $20,000 a time + Travel and accommodation (not added to the company finances) to do 'private' talks at companies
She already had a Camera and Auto Cue herself and a lighting rig before starting the series.
How about Crash Over-Ride Network?
Raised tons of money allegedly to help stop online harassment.
Records show they helped maybe 10 people in total.
Their work as such was basic info put up on a Tumblr blog
Behind the scene they were revealed to be trying to plot ways to take down people they deemed enemies via various means.