Well as I see it, you would need to get the sigil either tattooed on you or carve it into your skin. The problem is that you would need to make sure that the egregore in you didn't evolve to fast because if it evolved before you had a chance to grow accustomed to the energy it might kill you. But none the less that's a really good idea
I agree with Adamina on the Hitler bit, but I believe that your question would be something interesting to look into. I don't know if you would gain power by simply attaching a sigil to yourself, but if you found a way to infuse it, and in the process yourself, with energy and power I feel it might be possible.
Well, what i`m thinking is after making the sigil on skin, to 'become one with the recently created servitor', but my main doubt is: would the development of the servitor and it's ''evolutions'' physically kill me?Well, anyways gotta pratice a lot b4 trying something concrete, but(i think) when you put a plausible possibility on your mind, nothing is impossible.If it werent for thoughts who most people thought to be impossible, we wouldnt have modern "wonders" today, like the airplane or the PC.
My opinion:
Since sigils are fired into the cosmos I don't think you can evolve by tattooing it on your skin. I think it would be as powerful as carrying it on your necklace or something.
As for the worshiping... Well people in Egypt worshiped pharaohs as gods yet they were just men without godlike powers.
Just chiming in with the proper meaning of "egregore": For something to be an egregore implies that a group (usually large) believes in and recognizes the presence and the power of this specific thoughtform. Popular curses (the Great Bambino, mummy curses, for example) or legends can become egregores, but a single man wishing to do so is just strange, going by the definition of the word.
An egregore is a thoughtform, not something of flesh and blood. When you raise a living thing to the height of a god you do it in much the same manner an egregore is created, but there is a different word for it: apotheosis. (also, it should be noted that an egregore is usually thought to be under a god in terms of power, so it's a strange comparison)
The way I see it is that a living person wouldn't attain godhood until long after they were dead. Simply because the physical body doesn't live long enough. And being dead kinda guarantees you can't mess up ;)
For example, Emperor Hirohito: the Japanese emperors were thought to be direct descendants of the gods, but when WW2 ended, Hirohito had to bow to General MacArthur and the Japanese people were going nuts... it showed that he was indeed human. Or a more popular reference: at the end of 300 when Leonidas throws the spear and makes the "god king" Xerces bleed, proving his mortality.
Hitler definitely had influence over people, but I wouldn't say it was just him directly. I'd say a large part of his influence is owed to his SS. Interestingly, Hitler was a big fan of the occult -- but in the end no fear or magick could save him. He's idolized today among Neo-Nazi groups, and The History Channel is jokingly called The Hitler Channel (at least here in the US), but I don't think there many people fearing any supernatural god-like influence from him today. Coincidentally, I just saw an advertisement for a Ghost Hunters episode where they are looking for Hitler, lol.
A sigil can help magnify your power, but that alone isn't enough. If becoming a god were this easy, then everyone would be trying it. Sigils are just one technique for influencing your surroundings, manifesting things, etc, but they're no more powerful/effective than the person using them.