Leicester vice-chairman Aiyawatt Srivaddhanaprabha says the owners understand that spending money does not guarantee success.
More than £150million is estimated to have been invested by the new owners since taking over the club from Milan Mandaric in 2010, including the conversion of £103m of loans from themselves into equity and the £17m purchase of the King Power Stadium.
Success on the pitch did not follow immediately, but Leicester have earned promotion to the Premier League ahead of next season and Srivaddhanaprabha believes their patience has paid off.
"We came with ambition and tried to find a way to make the team a success, but you can't take anything for granted in football," he told the Leicester Mercury.
"We can make the team strong but we couldn't predict when it would happen. We have learned that since we came here. We want to build the team and do everything we can to prepare the team."
Srivaddhanaprabha says he and father Vichai have been spurred on by a love of football and he is proud to have taken the club back to the Premier League.
"I know we have invested quite a lot but we love football and we love the club," he said.
"We try to do everything to support them. We commit everything.
"We didn't have a timeline but now we are there and a success, I am very pleased what we have invested makes people happy in Leicester and makes everyone proud in Thailand.
"It makes King Power the owner of a Premier League team. It is something money can't buy.
"I feel English football is great to watch. To own a club is magnificent for me."