zeebee1 said:
Not everyone is so stupid that they have to see the result to figure out what's going to happen. He obviously decided that since he doesn't have enough allies he's going to make them from the material that's just lyin in the dumps. It's a basic military and political strategy.
Alright, so let's suppose that people catch on before the fruits of his labors come to pass. There are still a few things they need besides awareness.
-Money. Lucius is effectively sponsoring the muggleborn, and probably covers their books expenses, some trips, and similar things that cost money. While probably not prohibitively expensive for an individual, the costs add up as you recruit more and more.
-Connections. Unless you have connections, having loyal children isn't going to do much for you, since you won't be able to help them after graduation, and leaving them out in the cold isn't going to ingratiate them to you, no matter how helpful you were in school. While everyone has a few connections, Lucius has a lot more, or at least, extremely powerful ones.
-Knowledge. Lucius is a school governor, and has access to the Book of Hogwarts, so he can view the list of names of future students, and recruit them early. While others can still recruit, they have to wait until they first appear in the magical world, which would leave them with the dregs.
-I would also say that Lucius would be smart enough to hide his activities, or at least try to. While it would eventually come out, he could probably hide it for a year or two at least, since there would be relatively few children to be noticed, and it could be passed off as happenstance, rather than an extensive plan.
I'd say Lucius still has at least two years before people take notice if he's careful, four years if he's extremely careful and people don't notice until they show up at Hogwarts. At that point, the more paranoid or future thinking wizards might start emulating him, but given to bigotry we've seen, I don't think that they would lower themselves to try it.
Once Lucius starts making power plays, his children befriending Harry Potter, his children getting the DADA post and similar jobs, THEN people will start emulating full swing, assuming there aren't other factors that would prevent them from doing so, such as bigotry or being unable to afford the additional expenses, but as I said, that would still take years to reach the same level as Lucius's recruitment.
Hm... would Ron still be Harry's friend? By the time they go to Hogwarts, it will be pretty obvious that there are ulterior motives, and the Weasleys and Malfoys don't get along. It could easily prevent Harry from forming a friendship with him if he insults Hermione, and there definitely won't be a Golden Trio since Hermione and Ron will already have plenty of family animosity preventing them from forming bonds. After having a talk with Sirius about the workings of politics, Harry will definitely branch out his friendships, but what about before then? Who would Harry's friends be?