Nope, sorry, but I'm not wrong. Spiderman gets away with the webbed pattern because the webbed pattern IS the symbol, not the spider (Same way Shocker is identified by the netting on his costume). You could show a random person 100 different S's and they would be able to identify the one that Superman wears. Show people 100 different spider logos, they'd have no clue which one is Spiderman's. Spiderman's webbing is also just a basic shape repeated over his body a bunch of times, making easy for the brain to remember (people have an easy time remember basic patterns like tiles of dots).
And if you think Ghost Rider, Man-Thing, Swamp Thing, and Galactus are iconic, then you don't have the slightest clue about iconic imagery (Thing is debatable, but he, like Spiderman, uses a repeating pattern). Kids in a third world country would never recognize those characters the same way they would recognize Batman or Spiderman. Hell, most kids not familiar with the comics wouldn't be able to identify those characters (Although it doesn't matter what Ghostrider's costume is, He's got a FLAMING SKULL for a head! That's his main symbol, and that's all anyone is gonna look at). Even Wolverine's costumes are completely dispensable. They are in no way iconic, only popular to those familiar with the comic. His iconic features are the claws that come from his knuckles and his bizarre haircut. Think of Weapon X, even with no clothes, he is still instantly recognizable as Wolverine.
It's not opinion and it's not that hard to understand, the human brain is not designed to remember extremely complex images. Spiderman works because it is a repeating pattern and it's not competing with any other major symbol (seriously, the spider on his chest and back are throw-aways, its the web pattern that is the prominent feature).
If you refuse to believe this concept, think of all the iconic characters Rob Liefeld (sp?) and Todd McFarlene (sp?) have designed compared to classic comic artists (Liefild and Mcfarlene specialized in overly complex charater design). Between them, there's maybe 2 or 3 characters that can even be maybe considered iconic. Venom is by far the most iconic out of the 2 or 3 (with Spawn and possibly Deadpool being the others), and wouldn't you be shocked to know that his design was also the most basic out of all of them.