Because the event is * $ulevel will return user level 1 no matter what the user level of $nick. The help file is vague on $ulevel. You must use $level($fulladdress). Also I would not tokenize until after the level match. Also maybe require two words to trigger.

on *:text:* *:#:{

  if $istok(owner.superowner.master.operator,$level($fulladdress),46) {

   tokenize 32 $strip($1-)

   ;here u can put all commands that all levels can do
    ...
    ...
    if $level($fulladdress) != operator {
      ;here u can put all command that all levels exclude operator can do
      ...
      ...
      if $level($fulladdress) != master {
        ;here u can put all cmds exclude operator and master
        ...
        ...
        if $level($fulladdress) != owner {
          ;and here for superowner
          ...
          ...
        }
      }
    }
  }
}
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