Yes, whatever else Gaston Glock is, he was truly a manufacturing design genius and made it look easy. He used a blank slate to create a low cost firearm to produce that required minimal machining and used modern manufacturing techniques when compared with competitors and then ended up with most of the police market by undercutting S&W on price/support (which spilled over into dominating the civilian market for a long time). 3rd Generation pistols could simply not be sold as cheap long term as Glocks to the police. Beretta, Ruger and Sig had the potential to do so but retaining the DA/SA and the P85 fiasco left the opening to Glock as easier training for police transitioning from DA revolvers in the 1980's and 90's. The crack violence epidemic helped speed the transition as well.
Bill Ruger did the same in some respects for example his .22 auto pistol and his use of investment castings but I believer he was more of a traditionalist than Gaston. I do not know, but suspect Gaston is not really a gun guy when compared with Bill Ruger.
I'm not sure that the Ruger American rifle series that has some Glock like innovations would have ever been built under Bill Ruger.