Being able to play in the CWC is still something special especially for 40 years old player. Also, he can help FIFA to boost the ticket sales, too. Even though CWC is not as big as the world cup, but it still being considered by a major trophy after FIFA world cup.
I see it as Ronaldo's strong reason to keep his existence even in the top competition of club's level. There's nothing wrong for him to wish he can play again in CWC.
Yup he dedicated himself to football even if the salary is lower it is not a problem and this decision should be able to deny that he is not after money. For now he is not the best but he is still able to compete with other great players and he is confident in his abilities, the question is which club will sign him? some news reports that clubs from America are interested in him but so far there is no movement even the potential without a club is higher. We know that if there are clubs interested in him, it's not for the title but because of popularity and finances it's no secret that Ronaldo's arrival will have an impact on improving all lines such as sales and sponsorships.