So I have a question about Campaign Finance Laws

So this article got me to thinking

https://www.salon.com/2020/12/04/rncs-highest-paid-vendor-of-the-2020-election-a-mystery-company-formed-nine-months-ago/

In a nutshell, large outlays to a sketchy company that has no track record or accountability.

Of course the implication here is that this is done to hide the ultimate destination of where the money is going. The mind immediate leaps to the question of whether the actual investment was spent on campaign elements like ads or whether it ended up in somebody's pocket.

But I am asking myself couldn't the inverse also be true. What if a company like this was actually run by a rich scumbag (say Rebekka Mercer) who wanted to outlay more money than legally allowed directly helping a campaign. Couldn't she set up a company like this, absorb some amount of actual campaign cash and then use it as a smoke screen to spend much more than that. Do we have any way of knowing that an outfit like this didn't actually spend $100 million compared to the $42 million they took in?

The former is a grift against a campaigns donors which ultimately only hurts the campaign itself. The latter would be a circumvention of federal law and would hurt all of us.