There's also a massive unregulated conflict of interest here: reviewing the source code will require experience which someone is unlikely to have without also having a financial interest in expanded use of cryptocurrencies. As we've seen so many times over from all of the cryptocurrency boosters who talked up code or services until a major problem occurred, this can cloud someone's judgement even if they're not intentionally scamming you.
That’s not what we’re talking about: if I hire a lawyer to review a contract, they’re not making decisions based on a need to boost USD to protect their ability to find a buyer.
Similarly, while they’re both fiat currencies the USD is orders of magnitude stronger (inordinately more use, links to durable value, etc.) which means that my hypothetical lawyer’s ability to shift the value is extremely small.
Even actual government officials have relatively little power this way: there are many of them and the need to get re-elected means they’re far less likely to try the kind of pump and dump scams which are routine in the cryptocurrency world, especially given the likelihood of scrutiny and punishment.
No need for pump and dump when they are raking in their money by trading on insider knowledge, getting favors from lobbyists and by getting their cushy board seats at banks after they leave office.
