Good advisors could actually be of help if they are consulted. Sadly, in most cases the core team just try to thrive of the influences of advisors, instead of seeking to learn from them. People get interested when they see some big names as advisors, but that shouldn't be the primary reason of getting advisors.
Certainly, the presence of an advisor certainly makes investors optimistic about the future of project and collect moneyt, unfortunately many projects do not provide definite information about the adviser so it is not convincing for investors.