my short answer is only one.
no developer as smart as Satoshi.
if all new developers have intelligence & honesty like satoshi, then ICO is no longer valid.
Yes, and the ICO was formed to raise project funds carried out by the project developer, so it's different from a satoshi where he develops the project and the system from his own ideas and uses his own funds as well, even though there is a team that he forms for the project, will but he didn't show it because they worked sincerely in building something that was beneficial to everyone.