How influential are Christians in Korean society?

As of 2021, the religious distribution of Koreans is Protestant 17%, Buddhist 16%, and Catholic 6% (2021). 
Christianity is huge in Korea. A church can be found in any neighborhood or district. The megachurches in Korea are on a different level. I would say Christians are influential in that even strong politicians always visit mega churches during election season and also Christian opinions have a lot of say in legislating factors about sensitive topics as well. However it is also a fact that the younger generation is slowly moving away from it. Christianity is being slowly tainted in a negative light by the younger generation due to a compilation of hypocritical behavior, gatherings during COVID times, connection to conservatism in politics, etc.