For what it's worth - if the other parents bring up the conversation of what you do or what you did that week, that's fine in my opinion. It's hardly boasting and you're not the one who initiated the topic anyway.
If you're always the one bringing up your trips to fancy clients, that's a different story. :P
Consulting is an interesting one because there are people who would pity you for having to be away from your family dealing with corporate politics. Others may feel jealous of you high profile and high salary.
If you're always the one bringing up your trips to fancy clients, that's a different story. :P