> I just can’t find an argument why I should be able to get very rich doing my job
Another way to think about this is that your job generates certain value in the economy. If labor's salary doesn't capture that, then that value is going somewhere - either to your governments via taxes or to capital owners. I understand that some Europeans will not have problems with the former, but are you comfortable letting capital class capture all the remaining value after taxes? If not, that is a good enough argument because allowing that to happen is what is driving wealth inequality to high levels.
Another way to think about this is that your job generates certain value in the economy. If labor's salary doesn't capture that, then that value is going somewhere - either to your governments via taxes or to capital owners. I understand that some Europeans will not have problems with the former, but are you comfortable letting capital class capture all the remaining value after taxes? If not, that is a good enough argument because allowing that to happen is what is driving wealth inequality to high levels.