[Tri-ring]

Spoiler for Translation:

Although I wasn't certain until I rewatched it the second time but at 20'18 Lawrence caught by the three blurps out, "Are you guys doublecrossing Lemerio tradings? (裏切るのかレミリオ商会を）, not Is this a doublecross by Lemerio tradings.(俺を裏切るのか、レミリオ商会は meaning those three are taking the gold for themselves and it looks as if the chaperone is in it as well.
The part I don't understand is the next line by one of the men saying, We are doing it as insurance.(保険ですよ), the next line was "We are all hanging on a thread" and the last is "It's common sense in the business world that people lose their senses when they are confronted with large amount of money."

The above really does not make much sense to me, does anyone have an alternative answer?