You are both right. While you talk and present numbers on a weekly basis and prove that there are dilution and distribution in great effect.
@sigmajin simply says that that dilution and distribution is affecting more those accounts in power than smallest ones. If we had fairer say Gauss distribution of SP(vests) things would be "perfect".
New accounts can gain their part of pie only by creating content which is fair, to begin with,​ since it puts more emphasis on quality content creation than on natural distribution.
In the time when content creators "take ownership" of this platform, things will be better and I just wish that there will be enough curators with enough power so that they could bring their votes a point that it matters. Else only content creators will be valuing other content creators.