Answer:
So the words italicized are meant to be more apparent if that makes sense. The person interviewing Tom is making observation as to why him getting the job could be a problem hence the reason she/he called Tom slender or overly complimentary on his accomplishments. This is seen as professional in some cases because most people wouldn't make those kinds of observations based on the product being sold, the company isn't only thinking about Tom's accomplishments but also how he would physically fit in with the company. It wouldn't make sense for a vegitarian to work at a butcher shop and it wouldn't make sense for someone who doesn't work out or partake in fitness like Tom to sell protein shakes for bodybuilders and people who want to improve their physical health overall. Hope I could help <3