I'm sorry, but I've been watching - and subsequently reading and writing - about Star Trek for the best part of thirty years and there is a kind of cult status that has built up around Roddenberry's memory that I feel is only partially justified.
The truth is he wasn't always a pleasant person; he was a womaniser who often bullied people and took credit for others work.
Past the first half of the first series of the original Star Trek, Star Trek: The Motion Picture and the first series of The Next Generation his input into the day-to-day running of Trek was quite often limited.
Also, Deep Space Nine, Voyager and Enterprise - well over half of the Star Trek stories that exist - were made after he died.
He may have been the originator of the series concept, but he was only one of many that shaped Star Trek as a series, and I personally feel that others such as Gene L. Coon, D.C. Fontana, Harlen Ellison, David Gerrold and well known authors such as Therdore Sturgeon and Richard Matherson deserve as much credit as a combined group for Trek's legacy as he does in his own right.