<p>In season 8 episode 3 of TVD after Sybil erases Damon's memories of Elena he see's her being pulled from the car wreck and there had been 3 fatalities. But Damon never saved Elena from the car crash, Stefan did. So why did she die just because she never met Damon? Wouldn't Stefan have still saved her just the same? </p>
<p>You're right, it has no connection but if Elena would stay alive, Damon would have other memories with her, their meeting would have been just different. "Killing" Elena at this time was perfect to avoid any encounter between Elena and Damon.</p>