Actually have that sensation, Henry was a legend for Arsenal but never the same level of influence for France, of course he still has done great things. I remember a under 20 Toulon Tournament final between France and Portugal in 1997 coached by Domenech where their front 3 was Anelka/Henry/Trezeguet.For France Trezeguet was a better goalscorer, you do realize that it is quantified? And are you genuinely going to argue that Zidane, Thuram, Desailly, Lizarazu and Vieira weren't better for France? Henry was for France in the same bracket than the likes of Trézéguet, Pirès, Makélélé, Djorkaeff or Wiltord good players but support players, none of them have a claim to be high in a ranking that concerns performances for the national team.
Henry was a great player but not for France.
Fair to say him and Trezeguet a couple of months later already started having impact for Monaco under Tigana at Champions League level and in 98 they were already part of the French squad who won the WC.