Sticky Users?

I have this shortcode to display a loop of user avatars with order by registration date.

function Profiles() {
	$args = array(
	'orderby' => 'registered',
	'order' => 'DESC',
	'fields' => 'all_with_meta',
	);
	$user_query = new WP_User_Query( $args );
	if ( ! empty( $user_query->results ) ) {
	foreach ( $user_query->results as $user ) {	?>

	<div class="grid-item user-img-<?php echo $user->ID; ?>" rel="<?php echo $user->ID; ?>">
	<a href="<?php echo $website; ?>" rel="<?php echo $user->ID; ?>" target="_blank"><?php echo get_avatar( $user->ID, 100 ); ?></a>
	</div>
	<?php }
	} else {
		echo 'No users found.';
	}
}
add_shortcode('profiles', 'Profiles');

If any user role changes to sticky (a custom role) then that users move to top of the list. Default orderby should stay as registered for all other users in the loop. Once sticky user role is removed, it goes back to normal sorting.

I gave it quite a bit thought and maybe if i can combine two arguments in a single Wp_User_Query that might do the trick?

For example $sticky_args have role__in => 'sticky' and $simple_args have all others roles => 'subscriber', 'customer', 'author' OR role__not_in => 'sticky' argument. Then combining this Wp_User_Query in a way that $user_query->results shows $sticky_args users list first and then $simple_args user list after that in the loop. I tried several codes and trying to think if statements but nothing works so far. Would appreciate the help.