If the evidence was valid, Aaron wouldn't have romanced Aarvi in his office. He would have spoken with Aarvi if he didn't know about money laundering or he would have alerted Aarvi to clean up if he knew of Aarvi laundering.
His carefreeness only meant that he knew Aarvi well and that's the fake evidence. Anyhow, she hadn't discerned it and submitted it to the chief so that they could do the verification.
However, her chief was disappointed in her, for the first time. She knew he was punishing her for believing and getting influenced by random people. But to verify it, she had to use military resources, hence she had submitted the evidence to her chief.
Leon pretended to be sighing and weak as he sat down. He didn't expect this outcome. He had expected Charlotte to take action, seize Skylar's funds, and raid the company with the tax department. That would disturb Skylar for a week and they would lose a few million per day.