I believe we are drifting from the subject a bit as it is becoming a debate BUT:
In some civillisations getting permanent ink is considered civilised.
Who are we to judge others and what is considered civillised?
In some European countries they hunt foxes for fun or eat little birds and it is considered to be civillised while in other countries is considered barbarian.
The way we look has nothing to do with the way we act in everyday life and every person has the human right to express as they like.
That is a fact.
As Annita said,usually people get tattoos when they are quite young.
I am sure that we all did far more worse things when you where young than getting a tattoo.
Apparently there is no law stopping people to get tattoos and becoming pilots.
Now, if a company denies to take on people due to the fact that they have tattoos, then that is an internal company issue.