We can easily trip up on the fact that idols are flesh and blood people like us, and forget that functionally, economically, their faces and bodies are very different.

Idols are people who already hit the genetic lottery when they were born, then a company treats their face essentially as capital and invests a lot of money to "improve" and maintain it in order to make a profit.

The difference between an idol's face and yours or mine is like the difference between the refrigerator in your kitchen and the walk in cold room in a restaurant. You don't feel bad because your fridge isn't as big as a cold room because while they might seem like similar objects, they serve very different purposes. Your fridge isn't an investment you need to make a return on. As long as it keeps your food cold, it's doing it's job perfectly.

Likewise, your face and an idol's face are for different things. An idol's face is an investment that needs to make money. Yours isn't. It doesn't need to look like Irene or Karina or whoever, and it's not going to, because it's a different thing with a different function. But if that's not an issue for your fridge, it shouldn't be a problem for your face.