let's say that an ico conducted by an accredited person, a lawyer has more confidence from investors and perhaps is less at risk of scam but this does not mean that it will be successful and will meke earn the investors this nobody can know it until the end of the ico
Lawyer is surely gonna be confident but the investors I don't think so.
Having someone popular or somehow reputated to get into crypto is like the same way as the launching of Libra Coin of Facebook by Zuckerberg.
It kinda reduces the risk of the scam because it is surely a popular platform, but earning from it? I don't know.