Webster leapt off the ground and collected Simpkin's head with a hip-and-shoulder bump during the first quarter of the clash at RSEA Park on Sunday.
Simpkin kicked the ball into North's forward line a split-second before Webster cannoned into him.
Kangaroos players rushed to remonstrate with Webster and a melee spilled over the boundary line into the fence.
Simpkin lay on the ground and was attended to by trainers before being helped off the field several minutes later.
The incident comes less than a week after Port Adelaide forward Sam Powell-Pepper was handed a four-match ban his high bump on Adelaide's Mark Keane.
For mine this is one of the issues of hedging SPP's action at 4 weeks. Webster action was at least twice as bad in my view. Does that mean it's an 8 week penalty?— Nathan Buckley (@ncb_cfc) March 3, 2024
Collingwood great Nathan Buckley declared Webster's bump "at least twice as bad" as Powell-Pepper's and pondered whether it would result in a much larger suspension.
"For mine this is one of the issues of hedging SPP's action at 4 weeks," Buckley posted on X, formerly Twitter.
"Webster action was at least twice as bad in my view. Does that mean it's an 8 week penalty?"
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