Because he is Bond,
and, as an enemy of SPECTRE, should be killed.
All captures on
this page are courtesy of Blofelds Cat @OHMSS
Tribute.
The gunbarrel
sequence was re-shot for 'Thunderball'
with Sean Connery on colour film; the
first three films used Bob Simmons
playing Bond on black and white film.
'Thunderball'
was the first Bond film to be presented
in Panavision (CinemaScope).