I am not sure you know what "intangibles" means, Serge
Who Wentz went up against or not is what you can measure and see, that's exactly the opposite of "intangibles". RG3 had all the measurables and hype, like any Heisman Trophy winner, but not the intangibles - RG3 was a flashy, fashionable pick that usually losing franchises would make.
Wentz is just the opposite - there is nothing obvious about him, nothing flashy, hence why he's a prospect rooted in intangibles.
If Rams believe he (or Goff) is their QB of the future, there is nothing wrong with paying the price they did - yes, it's a hefty price-tag but you either take that risk or you stay stuck in mediocrity for a while. Now, going up to #1 to just draft a Qb for the sake of drafting a QB because there is noise in the media about him, now that would be stupid.
Where I'd have doubts is in Rams ability to actually correctly evaluate who the right QB for them is and just as importantly, how to develop him over the next 3 years.
I agree this draft class is a week one - but we again come back to the meaning of "intangibles" - when it comes to QBs, it's not always obvious where the next gem at the position would come from. How many "experts do you think had Brady pegged as an all-time great 16 years ago? Same with Montana back in decades past - greatness at the QB position is the hardest to evaluate as it has nothing to do with athleticism or Heisman trophies or arm-strength or even pristine accuracy.
P.S. Shannahan didn't ruin RG3's career. Yes, it was stupid of him to play him then but RG3 never had the mental make-up (ability to read the game, etc, etc) of a pocket passer. Running the ball and putting himself in danger was the only way he knew how to play the game that is, it was only a matter of time before he got his ass pasted. The reason why he even had as much success as he did in 12 was because defenses and DCs thruout the league were still getting used/studying his tendencies - that success was always going to be short-lived once he was no more a novelty int eh league.
Something similar happened to Kapernick - he can win games by running the ball but the moment they tried to constrain him to being a pocket passer, he got exposed. Letting him run the ball lead to some short-term success but it was never something the team (or the player) could have sustained in the long run.